31300131220200 has 144 divisors (see below), whose sum is σ = 105360165892800. Its totient is φ = 8327335555200.

The previous prime is 31300131220187. The next prime is 31300131220213. The reversal of 31300131220200 is 202213100313.

31300131220200 is a `hidden beast` number, since 3 + 130 + 0 + 1 + 312 + 20 + 200 = 666.

It is an interprime number because it is at equal distance from previous prime (31300131220187) and next prime (31300131220213).

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19397010 + ... + 20948609.

It is an arithmetic number, because the mean of its divisors is an integer number (731667818700).

Almost surely, 2^{31300131220200} is an apocalyptic number.

31300131220200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31300131220200 is an abundant number, since it is smaller than the sum of its proper divisors (74060034672600).

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

31300131220200 is a wasteful number, since it uses less digits than its factorization.

31300131220200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40346072 (or 40346060 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31300131220200 its reverse (202213100313), we get a palindrome (31502344320513).

The spelling of 31300131220200 in words is "thirty-one trillion, three hundred billion, one hundred thirty-one million, two hundred twenty thousand, two hundred".