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10231330121 = 19538491059
BaseRepresentation
bin10011000011101010…
…11011010101001001
3222102001001102101122
421201311123111021
5131423210030441
64411124525025
7511353604535
oct114165332511
928361042348
1010231330121
114380356831
121b96550775
13c708c3cbc
146d0b7cbc5
153ed35534b
hex261d5b549

10231330121 has 4 divisors (see below), whose sum is σ = 10769821200. Its totient is φ = 9692839044.

The previous prime is 10231330091. The next prime is 10231330127. The reversal of 10231330121 is 12103313201.

10231330121 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2k-10231330121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10231330121.

It is not an unprimeable number, because it can be changed into a prime (10231330127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269245511 + ... + 269245548.

It is an arithmetic number, because the mean of its divisors is an integer number (2692455300).

Almost surely, 210231330121 is an apocalyptic number.

It is an amenable number.

10231330121 is a deficient number, since it is larger than the sum of its proper divisors (538491079).

10231330121 is an equidigital number, since it uses as much as digits as its factorization.

10231330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538491078.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10231330121 its reverse (12103313201), we get a palindrome (22334643322).

The spelling of 10231330121 in words is "ten billion, two hundred thirty-one million, three hundred thirty thousand, one hundred twenty-one".

Divisors: 1 19 538491059 10231330121