31220202000204 has 108 divisors (see below), whose sum is σ = 91812666870288. Its totient is φ = 8919046584000.

The previous prime is 31220202000179. The next prime is 31220202000259. The reversal of 31220202000204 is 40200020202213.

It is a super-3 number, since 3×31220202000204³ (a number of 41 digits) contains 333 as substring.

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, 14632129 + ... + 16629479.

It is an arithmetic number, because the mean of its divisors is an integer number (850117285836).

Almost surely, 2^{31220202000204} is an apocalyptic number.

It is an amenable number.

31220202000204 is an abundant number, since it is smaller than the sum of its proper divisors (60592464870084).

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

31220202000204 is a wasteful number, since it uses less digits than its factorization.

31220202000204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006236 (or 2006224 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 31220202000204 its reverse (40200020202213), we get a palindrome (71420222202417).

The spelling of 31220202000204 in words is "thirty-one trillion, two hundred twenty billion, two hundred two million, two hundred four", and thus it is an aban number.