23231020442 has 12 divisors (see below), whose sum is σ = 40535760330. Its totient is φ = 9956151576.

The previous prime is 23231020433. The next prime is 23231020451. The reversal of 23231020442 is 24402013232.

It is an interprime number because it is at equal distance from previous prime (23231020433) and next prime (23231020451).

It can be written as a sum of positive squares in only one way, i.e., 23152361281 + 78659161 = 152159^2 + 8869^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118525517 + ... + 118525712.

Almost surely, 2^23231020442 is an apocalyptic number.

23231020442 is a deficient number, since it is larger than the sum of its proper divisors (17304739888).

23231020442 is a wasteful number, since it uses less digits than its factorization.

23231020442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237051245 (or 237051238 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 23231020442 its reverse (24402013232), we get a palindrome (47633033674).

The spelling of 23231020442 in words is "twenty-three billion, two hundred thirty-one million, twenty thousand, four hundred forty-two".