315011213044431 has 4 divisors (see below), whose sum is σ = 420014950725912. Its totient is φ = 210007475362952.

The previous prime is 315011213044399. The next prime is 315011213044433. The reversal of 315011213044431 is 134440312110513.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315011213044431 - 2⁵ = 315011213044399 is a prime.

It is a super-2 number, since 2×315011213044431² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 315011213044392 and 315011213044401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315011213044433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52501868840736 + ... + 52501868840741.

It is an arithmetic number, because the mean of its divisors is an integer number (105003737681478).

Almost surely, 2^{315011213044431} is an apocalyptic number.

315011213044431 is a deficient number, since it is larger than the sum of its proper divisors (105003737681481).

315011213044431 is a wasteful number, since it uses less digits than its factorization.

315011213044431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105003737681480.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 315011213044431 its reverse (134440312110513), we get a palindrome (449451525154944).

The spelling of 315011213044431 in words is "three hundred fifteen trillion, eleven billion, two hundred thirteen million, forty-four thousand, four hundred thirty-one".