12111012132131 has 32 divisors (see below), whose sum is σ = 13391976333312. Its totient is φ = 10861155315360.

The previous prime is 12111012132061. The next prime is 12111012132179. The reversal of 12111012132131 is 13123121011121.

It is a cyclic number.

It is not a de Polignac number, because 12111012132131 - 2²⁶ = 12110945023267 is a prime.

It is a super-2 number, since 2×12111012132131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111012132431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249548390 + ... + 249596916.

It is an arithmetic number, because the mean of its divisors is an integer number (418499260416).

Almost surely, 2^{12111012132131} is an apocalyptic number.

12111012132131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12111012132131 is a deficient number, since it is larger than the sum of its proper divisors (1280964201181).

12111012132131 is a wasteful number, since it uses less digits than its factorization.

12111012132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49679.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 12111012132131 its reverse (13123121011121), we get a palindrome (25234133143252).

The spelling of 12111012132131 in words is "twelve trillion, one hundred eleven billion, twelve million, one hundred thirty-two thousand, one hundred thirty-one".