20130535131 has 64 divisors (see below), whose sum is σ = 33396326400. Its totient is φ = 10525593600.

The previous prime is 20130535121. The next prime is 20130535147. The reversal of 20130535131 is 13153503102.

It is not a de Polignac number, because 20130535131 - 2⁷ = 20130535003 is a prime.

It is a super-2 number, since 2×20130535131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20130535121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7927260 + ... + 7929798.

It is an arithmetic number, because the mean of its divisors is an integer number (521817600).

Almost surely, 2^20130535131 is an apocalyptic number.

20130535131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20130535131 is a deficient number, since it is larger than the sum of its proper divisors (13265791269).

20130535131 is a wasteful number, since it uses less digits than its factorization.

20130535131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240.

The product of its (nonzero) digits is 1350, while the sum is 24.

The spelling of 20130535131 in words is "twenty billion, one hundred thirty million, five hundred thirty-five thousand, one hundred thirty-one".