312412571523 has 48 divisors (see below), whose sum is σ = 489739461120. Its totient is φ = 190766232000.

The previous prime is 312412571519. The next prime is 312412571533. The reversal of 312412571523 is 325175214213.

312412571523 is a `hidden beast` number, since 3 + 1 + 2 + 4 + 125 + 7 + 1 + 523 = 666.

It is not a de Polignac number, because 312412571523 - 2² = 312412571519 is a prime.

It is a super-2 number, since 2×312412571523² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312412571503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38230228 + ... + 38238398.

It is an arithmetic number, because the mean of its divisors is an integer number (10202905440).

Almost surely, 2^312412571523 is an apocalyptic number.

312412571523 is a deficient number, since it is larger than the sum of its proper divisors (177326889597).

312412571523 is a wasteful number, since it uses less digits than its factorization.

312412571523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10680 (or 10677 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

Adding to 312412571523 its reverse (325175214213), we get a palindrome (637587785736).

The spelling of 312412571523 in words is "three hundred twelve billion, four hundred twelve million, five hundred seventy-one thousand, five hundred twenty-three".