312521115441 has 4 divisors (see below), whose sum is σ = 416694820592. Its totient is φ = 208347410292.

The previous prime is 312521115437. The next prime is 312521115443. The reversal of 312521115441 is 144511125213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 312521115441 - 2² = 312521115437 is a prime.

It is a super-3 number, since 3×312521115441³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312521115399 and 312521115408.

It is not an unprimeable number, because it can be changed into a prime (312521115443) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 52086852571 + ... + 52086852576.

It is an arithmetic number, because the mean of its divisors is an integer number (104173705148).

Almost surely, 2^312521115441 is an apocalyptic number.

It is an amenable number.

312521115441 is a deficient number, since it is larger than the sum of its proper divisors (104173705151).

312521115441 is a wasteful number, since it uses less digits than its factorization.

312521115441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104173705150.

The product of its digits is 4800, while the sum is 30.

The spelling of 312521115441 in words is "three hundred twelve billion, five hundred twenty-one million, one hundred fifteen thousand, four hundred forty-one".