251211103150232 has 64 divisors (see below), whose sum is σ = 474188238720000. Its totient is φ = 124762039153920.

The previous prime is 251211103150199. The next prime is 251211103150289. The reversal of 251211103150232 is 232051301112152.

It is a junction number, because it is equal to n+sod(n) for n = 251211103150195 and 251211103150204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15818334932 + ... + 15818350812.

It is an arithmetic number, because the mean of its divisors is an integer number (7409191230000).

Almost surely, 2^{251211103150232} is an apocalyptic number.

It is an amenable number.

251211103150232 is a deficient number, since it is larger than the sum of its proper divisors (222977135569768).

251211103150232 is a wasteful number, since it uses less digits than its factorization.

251211103150232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23976 (or 23972 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 251211103150232 its reverse (232051301112152), we get a palindrome (483262404262384).

The spelling of 251211103150232 in words is "two hundred fifty-one trillion, two hundred eleven billion, one hundred three million, one hundred fifty thousand, two hundred thirty-two".