20101131120012 has 48 divisors (see below), whose sum is σ = 48223900161024. Its totient is φ = 6512831568000.

The previous prime is 20101131119963. The next prime is 20101131120043. The reversal of 20101131120012 is 21002113110102.

It is a junction number, because it is equal to n+sod(n) for n = 20101131119973 and 20101131120000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75246664 + ... + 75513327.

It is an arithmetic number, because the mean of its divisors is an integer number (1004664586688).

Almost surely, 2^{20101131120012} is an apocalyptic number.

It is an amenable number.

20101131120012 is an abundant number, since it is smaller than the sum of its proper divisors (28122769041012).

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

20101131120012 is a wasteful number, since it uses less digits than its factorization.

20101131120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150760310 (or 150760308 counting only the distinct ones).

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

Adding to 20101131120012 its reverse (21002113110102), we get a palindrome (41103244230114).

The spelling of 20101131120012 in words is "twenty trillion, one hundred one billion, one hundred thirty-one million, one hundred twenty thousand, twelve".