20013131022 has 8 divisors (see below), whose sum is σ = 40026262056. Its totient is φ = 6671043672.

The previous prime is 20013131011. The next prime is 20013131023. The reversal of 20013131022 is 22013131002.

It is a sphenic number, since it is the product of 3 distinct primes.

20013131022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20013130992 and 20013131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013131023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1667760913 + ... + 1667760924.

It is an arithmetic number, because the mean of its divisors is an integer number (5003282757).

Almost surely, 2^20013131022 is an apocalyptic number.

20013131022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20013131022 is a wasteful number, since it uses less digits than its factorization.

20013131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3335521842.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20013131022 its reverse (22013131002), we get a palindrome (42026262024).

The spelling of 20013131022 in words is "twenty billion, thirteen million, one hundred thirty-one thousand, twenty-two".