31020002132202 has 96 divisors (see below), whose sum is σ = 71905727462400. Its totient is φ = 9647350562304.

The previous prime is 31020002132183. The next prime is 31020002132239. The reversal of 31020002132202 is 20223120002013.

31020002132202 is a `hidden beast` number, since 31 + 0 + 200 + 0 + 213 + 220 + 2 = 666.

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 47 ways as a sum of consecutive naturals, for example, 6064143 + ... + 9940514.

It is an arithmetic number, because the mean of its divisors is an integer number (749017994400).

Almost surely, 2^{31020002132202} is an apocalyptic number.

31020002132202 is an abundant number, since it is smaller than the sum of its proper divisors (40885725330198).

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

31020002132202 is a wasteful number, since it uses less digits than its factorization.

31020002132202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16004820 (or 16004817 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31020002132202 its reverse (20223120002013), we get a palindrome (51243122134215).

The spelling of 31020002132202 in words is "thirty-one trillion, twenty billion, two million, one hundred thirty-two thousand, two hundred two".