232131103021 has 4 divisors (see below), whose sum is σ = 232872736252. Its totient is φ = 231389469792.

The previous prime is 232131103013. The next prime is 232131103051. The reversal of 232131103021 is 120301131232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4912047396 + 227219055625 = 70086^2 + 476675^2 .

It is a cyclic number.

It is not a de Polignac number, because 232131103021 - 2³ = 232131103013 is a prime.

It is a super-2 number, since 2×232131103021² (a number of 24 digits) contains 22 as substring.

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 232131103021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131103051) 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, 370816146 + ... + 370816771.

It is an arithmetic number, because the mean of its divisors is an integer number (58218184063).

Almost surely, 2^232131103021 is an apocalyptic number.

It is an amenable number.

232131103021 is a deficient number, since it is larger than the sum of its proper divisors (741633231).

232131103021 is an equidigital number, since it uses as much as digits as its factorization.

232131103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741633230.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 232131103021 its reverse (120301131232), we get a palindrome (352432234253).

The spelling of 232131103021 in words is "two hundred thirty-two billion, one hundred thirty-one million, one hundred three thousand, twenty-one".