315141111220 has 24 divisors (see below), whose sum is σ = 712703744424. Its totient is φ = 116359794816.

The previous prime is 315141111199. The next prime is 315141111227. The reversal of 315141111220 is 22111141513.

It can be written as a sum of positive squares in 4 ways, for example, as 11905864996 + 303235246224 = 109114^2 + 550668^2 .

It is a junction number, because it is equal to n+sod(n) for n = 315141111191 and 315141111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315141111227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606040339 + ... + 606040858.

It is an arithmetic number, because the mean of its divisors is an integer number (29695989351).

Almost surely, 2^315141111220 is an apocalyptic number.

It is an amenable number.

315141111220 is an abundant number, since it is smaller than the sum of its proper divisors (397562633204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315141111220 is a wasteful number, since it uses less digits than its factorization.

315141111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212081219 (or 1212081217 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 315141111220 its reverse (22111141513), we get a palindrome (337252252733).

The spelling of 315141111220 in words is "three hundred fifteen billion, one hundred forty-one million, one hundred eleven thousand, two hundred twenty".