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2031312202213 = 7290187457459
BaseRepresentation
bin11101100011110011101…
…001000110100111100101
321012012011122021112101011
4131203303221012213211
5231240111410432323
64153101050102221
7266520544555240
oct35436351064745
97165148245334
102031312202213
11713524866858
1228982241a971
13119723747488
147045d2b4257
1537c8be0720d
hex1d8f3a469e5

2031312202213 has 4 divisors (see below), whose sum is σ = 2321499659680. Its totient is φ = 1741124744748.

The previous prime is 2031312202211. The next prime is 2031312202219. The reversal of 2031312202213 is 3122022131302.

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 2031312202213 - 21 = 2031312202211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031312202211) 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, 145093728723 + ... + 145093728736.

It is an arithmetic number, because the mean of its divisors is an integer number (580374914920).

Almost surely, 22031312202213 is an apocalyptic number.

It is an amenable number.

2031312202213 is a deficient number, since it is larger than the sum of its proper divisors (290187457467).

2031312202213 is an equidigital number, since it uses as much as digits as its factorization.

2031312202213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290187457466.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2031312202213 its reverse (3122022131302), we get a palindrome (5153334333515).

The spelling of 2031312202213 in words is "two trillion, thirty-one billion, three hundred twelve million, two hundred two thousand, two hundred thirteen".

Divisors: 1 7 290187457459 2031312202213