20112031011012 has 96 divisors (see below), whose sum is σ = 50789532057600. Its totient is φ = 6173395948800.

The previous prime is 20112031010983. The next prime is 20112031011113. The reversal of 20112031011012 is 21011013021102.

It is a junction number, because it is equal to n+sod(n) for n = 20112031010982 and 20112031011000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1436212 + ... + 6502827.

It is an arithmetic number, because the mean of its divisors is an integer number (529057625600).

Almost surely, 2^{20112031011012} is an apocalyptic number.

It is an amenable number.

20112031011012 is an abundant number, since it is smaller than the sum of its proper divisors (30677501046588).

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

20112031011012 is a wasteful number, since it uses less digits than its factorization.

20112031011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7939377 (or 7939375 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20112031011012 its reverse (21011013021102), we get a palindrome (41123044032114).

The spelling of 20112031011012 in words is "twenty trillion, one hundred twelve billion, thirty-one million, eleven thousand, twelve".