251423124051 has 16 divisors (see below), whose sum is σ = 365726113920. Its totient is φ = 152369421120.

The previous prime is 251423124049. The next prime is 251423124077. The reversal of 251423124051 is 150421324152.

It is not a de Polignac number, because 251423124051 - 2¹ = 251423124049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (251423124041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445260 + ... + 837318.

It is an arithmetic number, because the mean of its divisors is an integer number (22857882120).

Almost surely, 2^251423124051 is an apocalyptic number.

251423124051 is a deficient number, since it is larger than the sum of its proper divisors (114302989869).

251423124051 is a wasteful number, since it uses less digits than its factorization.

251423124051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411506.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 251423124051 in words is "two hundred fifty-one billion, four hundred twenty-three million, one hundred twenty-four thousand, fifty-one".