251451130323 has 16 divisors (see below), whose sum is σ = 352931772800. Its totient is φ = 158803182720.

The previous prime is 251451130309. The next prime is 251451130331. The reversal of 251451130323 is 323031154152.

It is not a de Polignac number, because 251451130323 - 2⁵ = 251451130291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251451130363) 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, 1143948 + ... + 1345926.

It is an arithmetic number, because the mean of its divisors is an integer number (22058235800).

Almost surely, 2^251451130323 is an apocalyptic number.

251451130323 is a deficient number, since it is larger than the sum of its proper divisors (101480642477).

251451130323 is a wasteful number, since it uses less digits than its factorization.

251451130323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223842.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 251451130323 its reverse (323031154152), we get a palindrome (574482284475).

The spelling of 251451130323 in words is "two hundred fifty-one billion, four hundred fifty-one million, one hundred thirty thousand, three hundred twenty-three".