23431021040140 has 36 divisors (see below), whose sum is σ = 57238637114736. Its totient is φ = 8033492927712.

The previous prime is 23431021040131. The next prime is 23431021040177. The reversal of 23431021040140 is 4104012013432.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11954601592 + ... + 11954603551.

It is an arithmetic number, because the mean of its divisors is an integer number (1589962142076).

Almost surely, 2^{23431021040140} is an apocalyptic number.

23431021040140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23431021040140 is an abundant number, since it is smaller than the sum of its proper divisors (33807616074596).

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

23431021040140 is a wasteful number, since it uses less digits than its factorization.

23431021040140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23909205166 (or 23909205157 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 23431021040140 its reverse (4104012013432), we get a palindrome (27535033053572).

The spelling of 23431021040140 in words is "twenty-three trillion, four hundred thirty-one billion, twenty-one million, forty thousand, one hundred forty".