31011022020000 has 240 divisors, whose sum is σ = 110969843558112. Its totient is φ = 7517823360000.

The previous prime is 31011022019983. The next prime is 31011022020047. The reversal of 31011022020000 is 2022011013.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22833199 + ... + 24153198.

Almost surely, 2^{31011022020000} is an apocalyptic number.

31011022020000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31011022020000 is an abundant number, since it is smaller than the sum of its proper divisors (79958821538112).

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

31011022020000 is a wasteful number, since it uses less digits than its factorization.

31011022020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46986441 (or 46986418 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 31011022020000 its reverse (2022011013), we get a palindrome (31013044031013).

The spelling of 31011022020000 in words is "thirty-one trillion, eleven billion, twenty-two million, twenty thousand".