20535054131 has 16 divisors (see below), whose sum is σ = 21795486720. Its totient is φ = 19313238240.

The previous prime is 20535054121. The next prime is 20535054149. The reversal of 20535054131 is 13145053502.

It is a cyclic number.

It is not a de Polignac number, because 20535054131 - 2²² = 20530859827 is a prime.

It is a super-2 number, since 2×20535054131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20535054094 and 20535054103.

It is not an unprimeable number, because it can be changed into a prime (20535054121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1030460 + ... + 1050198.

It is an arithmetic number, because the mean of its divisors is an integer number (1362217920).

Almost surely, 2^20535054131 is an apocalyptic number.

20535054131 is a deficient number, since it is larger than the sum of its proper divisors (1260432589).

20535054131 is a wasteful number, since it uses less digits than its factorization.

20535054131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20714.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 20535054131 in words is "twenty billion, five hundred thirty-five million, fifty-four thousand, one hundred thirty-one".