20200000131 has 16 divisors (see below), whose sum is σ = 30051148800. Its totient is φ = 13410316584.

The previous prime is 20200000127. The next prime is 20200000147. The reversal of 20200000131 is 13100000202.

It is a happy number.

It is not a de Polignac number, because 20200000131 - 2² = 20200000127 is a prime.

It is a super-2 number, since 2×20200000131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20200000231) 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 15 ways as a sum of consecutive naturals, for example, 1558711 + ... + 1571616.

It is an arithmetic number, because the mean of its divisors is an integer number (1878196800).

Almost surely, 2^20200000131 is an apocalyptic number.

20200000131 is a deficient number, since it is larger than the sum of its proper divisors (9851148669).

20200000131 is a wasteful number, since it uses less digits than its factorization.

20200000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130575 (or 3130569 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20200000131 its reverse (13100000202), we get a palindrome (33300000333).

The spelling of 20200000131 in words is "twenty billion, two hundred million, one hundred thirty-one", and thus it is an aban number.