315031220100 has 108 divisors (see below), whose sum is σ = 1014135744804. Its totient is φ = 81737821440.

The previous prime is 315031220081. The next prime is 315031220111. The reversal of 315031220100 is 1022130513.

315031220100 is a `hidden beast` number, since 3 + 150 + 312 + 201 + 0 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 734193216 + 314297026884 = 27096^2 + 560622^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 4696899 + ... + 4763498.

Almost surely, 2^315031220100 is an apocalyptic number.

315031220100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315031220100 is an abundant number, since it is smaller than the sum of its proper divisors (699104524704).

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

315031220100 is a wasteful number, since it uses less digits than its factorization.

315031220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9460454 (or 9460444 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 315031220100 its reverse (1022130513), we get a palindrome (316053350613).

The spelling of 315031220100 in words is "three hundred fifteen billion, thirty-one million, two hundred twenty thousand, one hundred".