23431425401540 has 96 divisors (see below), whose sum is σ = 54820491828480. Its totient is φ = 8352945409536.

The previous prime is 23431425401491. The next prime is 23431425401561. The reversal of 23431425401540 is 4510452413432.

It is a junction number, because it is equal to n+sod(n) for n = 23431425401494 and 23431425401503.

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, 275793347 + ... + 275878293.

It is an arithmetic number, because the mean of its divisors is an integer number (571046789880).

Almost surely, 2^{23431425401540} is an apocalyptic number.

23431425401540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23431425401540 is an abundant number, since it is smaller than the sum of its proper divisors (31389066426940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23431425401540 is a wasteful number, since it uses less digits than its factorization.

23431425401540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121581 (or 121579 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 23431425401540 its reverse (4510452413432), we get a palindrome (27941877814972).

The spelling of 23431425401540 in words is "twenty-three trillion, four hundred thirty-one billion, four hundred twenty-five million, four hundred one thousand, five hundred forty".