315512123562250 has 32 divisors (see below), whose sum is σ = 616318638594048. Its totient is φ = 120717682056400.

The previous prime is 315512123562247. The next prime is 315512123562253. The reversal of 315512123562250 is 52265321215513.

It is an interprime number because it is at equal distance from previous prime (315512123562247) and next prime (315512123562253).

It is a super-2 number, since 2×315512123562250² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315512123562197 and 315512123562206.

It is not an unprimeable number, because it can be changed into a prime (315512123562253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27435831082 + ... + 27435842581.

It is an arithmetic number, because the mean of its divisors is an integer number (19259957456064).

Almost surely, 2^{315512123562250} is an apocalyptic number.

315512123562250 is a deficient number, since it is larger than the sum of its proper divisors (300806515031798).

315512123562250 is a wasteful number, since it uses less digits than its factorization.

315512123562250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54871673703 (or 54871673693 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 43.

Adding to 315512123562250 its reverse (52265321215513), we get a palindrome (367777444777763).

The spelling of 315512123562250 in words is "three hundred fifteen trillion, five hundred twelve billion, one hundred twenty-three million, five hundred sixty-two thousand, two hundred fifty".