251310114040 has 64 divisors (see below), whose sum is σ = 567696729600. Its totient is φ = 100124707968.

The previous prime is 251310114023. The next prime is 251310114053. The reversal of 251310114040 is 40411013152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19137957 + ... + 19151083.

It is an arithmetic number, because the mean of its divisors is an integer number (8870261400).

Almost surely, 2^251310114040 is an apocalyptic number.

251310114040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

251310114040 is an abundant number, since it is smaller than the sum of its proper divisors (316386615560).

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

251310114040 is a wasteful number, since it uses less digits than its factorization.

251310114040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15004 (or 15000 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 251310114040 its reverse (40411013152), we get a palindrome (291721127192).

The spelling of 251310114040 in words is "two hundred fifty-one billion, three hundred ten million, one hundred fourteen thousand, forty".