251211423310412 has 12 divisors (see below), whose sum is σ = 440098358580720. Its totient is φ = 125469035144496.

The previous prime is 251211423310361. The next prime is 251211423310427. The reversal of 251211423310412 is 214013324112152.

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, 34169123543 + ... + 34169130894.

It is an arithmetic number, because the mean of its divisors is an integer number (36674863215060).

Almost surely, 2^{251211423310412} is an apocalyptic number.

It is an amenable number.

251211423310412 is a deficient number, since it is larger than the sum of its proper divisors (188886935270308).

251211423310412 is a wasteful number, since it uses less digits than its factorization.

251211423310412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68338255360 (or 68338255358 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 251211423310412 its reverse (214013324112152), we get a palindrome (465224747422564).

The spelling of 251211423310412 in words is "two hundred fifty-one trillion, two hundred eleven billion, four hundred twenty-three million, three hundred ten thousand, four hundred twelve".