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2231020222313 = 2397000879231
BaseRepresentation
bin100000011101110011001…
…010101111011101101001
321220021122122011002202012
4200131303022233131221
5243023112134103223
64424525550045305
7320120521665011
oct40356312573551
97807578132665
102231020222313
11790196831153
123004781a9835
131324cc41617c
1479da66acc41
153d079903c78
hex207732af769

2231020222313 has 4 divisors (see below), whose sum is σ = 2328021101568. Its totient is φ = 2134019343060.

The previous prime is 2231020222309. The next prime is 2231020222351. The reversal of 2231020222313 is 3132220201322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2231020222313 - 22 = 2231020222309 is a prime.

It is a super-3 number, since 3×22310202223133 (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 97000879231 = 2231020222313 / (2 + 2 + 3 + 1 + 0 + 2 + 0 + 2 + 2 + 2 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231020222913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48500439593 + ... + 48500439638.

It is an arithmetic number, because the mean of its divisors is an integer number (582005275392).

Almost surely, 22231020222313 is an apocalyptic number.

2231020222313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2231020222313 is a deficient number, since it is larger than the sum of its proper divisors (97000879255).

2231020222313 is an equidigital number, since it uses as much as digits as its factorization.

2231020222313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97000879254.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2231020222313 its reverse (3132220201322), we get a palindrome (5363240423635).

The spelling of 2231020222313 in words is "two trillion, two hundred thirty-one billion, twenty million, two hundred twenty-two thousand, three hundred thirteen".

Divisors: 1 23 97000879231 2231020222313