251230115300 has 18 divisors (see below), whose sum is σ = 545169350418. Its totient is φ = 100492046080.

The previous prime is 251230115261. The next prime is 251230115351. The reversal of 251230115300 is 3511032152.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1701892516 + 249528222784 = 41254^2 + 499528^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1256150477 + ... + 1256150676.

Almost surely, 2^251230115300 is an apocalyptic number.

251230115300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

251230115300 is an abundant number, since it is smaller than the sum of its proper divisors (293939235118).

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

251230115300 is a wasteful number, since it uses less digits than its factorization.

251230115300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512301167 (or 2512301160 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 251230115300 its reverse (3511032152), we get a palindrome (254741147452).

The spelling of 251230115300 in words is "two hundred fifty-one billion, two hundred thirty million, one hundred fifteen thousand, three hundred".