11012002131 has 16 divisors (see below), whose sum is σ = 15815362304. Its totient is φ = 6775221024.

The previous prime is 11012002103. The next prime is 11012002153. The reversal of 11012002131 is 13120021011.

It is not a de Polignac number, because 11012002131 - 2²⁷ = 10877784403 is a prime.

It is a super-2 number, since 2×11012002131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012002531) 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, 182130 + ... + 234936.

It is an arithmetic number, because the mean of its divisors is an integer number (988460144).

Almost surely, 2^11012002131 is an apocalyptic number.

11012002131 is a deficient number, since it is larger than the sum of its proper divisors (4803360173).

11012002131 is a wasteful number, since it uses less digits than its factorization.

11012002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58170.

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

Adding to 11012002131 its reverse (13120021011), we get a palindrome (24132023142).

The spelling of 11012002131 in words is "eleven billion, twelve million, two thousand, one hundred thirty-one".