20112131132010 has 80 divisors (see below), whose sum is σ = 54150726534696. Its totient is φ = 5356149950592.

The previous prime is 20112131131921. The next prime is 20112131132053. The reversal of 20112131132010 is 1023113121102.

20112131132010 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 21 + 311 + 320 + 10 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 20062757847609 + 49373284401 = 4479147^2 + 222201^2 .

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 39 ways as a sum of consecutive naturals, for example, 15786957 + ... + 17013296.

Almost surely, 2^{20112131132010} is an apocalyptic number.

20112131132010 is an abundant number, since it is smaller than the sum of its proper divisors (34038595402686).

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

20112131132010 is a wasteful number, since it uses less digits than its factorization.

20112131132010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32801029 (or 32801020 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20112131132010 its reverse (1023113121102), we get a palindrome (21135244253112).

The spelling of 20112131132010 in words is "twenty trillion, one hundred twelve billion, one hundred thirty-one million, one hundred thirty-two thousand, ten".