12101012131 has 16 divisors (see below), whose sum is σ = 13878242784. Its totient is φ = 10452294144.

The previous prime is 12101012129. The next prime is 12101012153. The reversal of 12101012131 is 13121010121.

It is a happy number.

It is not a de Polignac number, because 12101012131 - 2¹ = 12101012129 is a prime.

It is a super-2 number, since 2×12101012131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101012111) 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, 120021 + ... + 196486.

It is an arithmetic number, because the mean of its divisors is an integer number (867390174).

Almost surely, 2^12101012131 is an apocalyptic number.

12101012131 is a deficient number, since it is larger than the sum of its proper divisors (1777230653).

12101012131 is a wasteful number, since it uses less digits than its factorization.

12101012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316710.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12101012131 its reverse (13121010121), we get a palindrome (25222022252).

The spelling of 12101012131 in words is "twelve billion, one hundred one million, twelve thousand, one hundred thirty-one".