23431344625442 has 64 divisors (see below), whose sum is σ = 38373940681440. Its totient is φ = 10729722931200.

The previous prime is 23431344625387. The next prime is 23431344625459. The reversal of 23431344625442 is 24452644313432.

It can be written as a sum of positive squares in 16 ways, for example, as 12896652798481 + 10534691826961 = 3591191^2 + 3245719^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344336942 + ... + 344404982.

Almost surely, 2^{23431344625442} is an apocalyptic number.

23431344625442 is a deficient number, since it is larger than the sum of its proper divisors (14942596055998).

23431344625442 is a wasteful number, since it uses less digits than its factorization.

23431344625442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68696 (or 68670 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 47.

Adding to 23431344625442 its reverse (24452644313432), we get a palindrome (47883988938874).

The spelling of 23431344625442 in words is "twenty-three trillion, four hundred thirty-one billion, three hundred forty-four million, six hundred twenty-five thousand, four hundred forty-two".