12101321112031 has 4 divisors (see below), whose sum is σ = 12123689543464. Its totient is φ = 12078952680600.

The previous prime is 12101321112017. The next prime is 12101321112121. The reversal of 12101321112031 is 13021112310121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12101321112031 - 2²⁵ = 12101287557599 is a prime.

It is a super-2 number, since 2×12101321112031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101321112011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11184214905 + ... + 11184215986.

It is an arithmetic number, because the mean of its divisors is an integer number (3030922385866).

Almost surely, 2^{12101321112031} is an apocalyptic number.

12101321112031 is a deficient number, since it is larger than the sum of its proper divisors (22368431433).

12101321112031 is an equidigital number, since it uses as much as digits as its factorization.

12101321112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22368431432.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12101321112031 its reverse (13021112310121), we get a palindrome (25122433422152).

The spelling of 12101321112031 in words is "twelve trillion, one hundred one billion, three hundred twenty-one million, one hundred twelve thousand, thirty-one".