251123453132 has 12 divisors (see below), whose sum is σ = 439472674200. Its totient is φ = 125559831936.

The previous prime is 251123453099. The next prime is 251123453149. The reversal of 251123453132 is 231354321152.

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, 151013 + ... + 724604.

It is an arithmetic number, because the mean of its divisors is an integer number (36622722850).

Almost surely, 2^251123453132 is an apocalyptic number.

It is an amenable number.

251123453132 is a deficient number, since it is larger than the sum of its proper divisors (188349221068).

251123453132 is a wasteful number, since it uses less digits than its factorization.

251123453132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947320 (or 947318 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

Adding to 251123453132 its reverse (231354321152), we get a palindrome (482477774284).

The spelling of 251123453132 in words is "two hundred fifty-one billion, one hundred twenty-three million, four hundred fifty-three thousand, one hundred thirty-two".