251123404230 has 48 divisors (see below), whose sum is σ = 652964635440. Its totient is φ = 66961750464.

The previous prime is 251123404229. The next prime is 251123404247. The reversal of 251123404230 is 32404321152.

251123404230 is a `hidden beast` number, since 2 + 5 + 1 + 1 + 23 + 404 + 230 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 251123404194 and 251123404203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1385124 + ... + 1555896.

It is an arithmetic number, because the mean of its divisors is an integer number (13603429905).

Almost surely, 2^251123404230 is an apocalyptic number.

251123404230 is an abundant number, since it is smaller than the sum of its proper divisors (401841231210).

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

251123404230 is a wasteful number, since it uses less digits than its factorization.

251123404230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187125 (or 187122 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 251123404230 its reverse (32404321152), we get a palindrome (283527725382).

The spelling of 251123404230 in words is "two hundred fifty-one billion, one hundred twenty-three million, four hundred four thousand, two hundred thirty".