251043224132 has 12 divisors (see below), whose sum is σ = 439338493440. Its totient is φ = 125517940296.

The previous prime is 251043224093. The next prime is 251043224167. The reversal of 251043224132 is 231422340152.

It is a junction number, because it is equal to n+sod(n) for n = 251043224095 and 251043224104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761132 + ... + 1039907.

It is an arithmetic number, because the mean of its divisors is an integer number (36611541120).

Almost surely, 2^251043224132 is an apocalyptic number.

It is an amenable number.

251043224132 is a deficient number, since it is larger than the sum of its proper divisors (188295269308).

251043224132 is a wasteful number, since it uses less digits than its factorization.

251043224132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835890 (or 1835888 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 251043224132 its reverse (231422340152), we get a palindrome (482465564284).

The spelling of 251043224132 in words is "two hundred fifty-one billion, forty-three million, two hundred twenty-four thousand, one hundred thirty-two".