315220636041031 has 6 divisors (see below), whose sum is σ = 366685229680440. Its totient is φ = 270189116606556.

The previous prime is 315220636041013. The next prime is 315220636041061. The reversal of 315220636041031 is 130140636022513.

It is a de Polignac number, because none of the positive numbers 2^k-315220636041031 is a prime.

It is a super-2 number, since 2×315220636041031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315220636041061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3216537102411 + ... + 3216537102508.

It is an arithmetic number, because the mean of its divisors is an integer number (61114204946740).

Almost surely, 2^{315220636041031} is an apocalyptic number.

315220636041031 is a deficient number, since it is larger than the sum of its proper divisors (51464593639409).

315220636041031 is an equidigital number, since it uses as much as digits as its factorization.

315220636041031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6433074204933 (or 6433074204926 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 315220636041031 in words is "three hundred fifteen trillion, two hundred twenty billion, six hundred thirty-six million, forty-one thousand, thirty-one".