20031011133112 has 96 divisors (see below), whose sum is σ = 47996882006400. Its totient is φ = 7654486224384.

The previous prime is 20031011133103. The next prime is 20031011133127. The reversal of 20031011133112 is 21133111013002.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 20031011133112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32263678 + ... + 32878669.

It is an arithmetic number, because the mean of its divisors is an integer number (499967520900).

Almost surely, 2^{20031011133112} is an apocalyptic number.

It is an amenable number.

20031011133112 is an abundant number, since it is smaller than the sum of its proper divisors (27965870873288).

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

20031011133112 is a wasteful number, since it uses less digits than its factorization.

20031011133112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65142413 (or 65142392 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20031011133112 its reverse (21133111013002), we get a palindrome (41164122146114).

The spelling of 20031011133112 in words is "twenty trillion, thirty-one billion, eleven million, one hundred thirty-three thousand, one hundred twelve".