12133012021231 has 4 divisors (see below), whose sum is σ = 12133197501832. Its totient is φ = 12132826540632.

The previous prime is 12133012021213. The next prime is 12133012021243. The reversal of 12133012021231 is 13212021033121.

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 12133012021231 - 2⁵ = 12133012021199 is a prime.

It is a super-2 number, since 2×12133012021231² (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 (12133012021931) 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, 92642145 + ... + 92773018.

It is an arithmetic number, because the mean of its divisors is an integer number (3033299375458).

Almost surely, 2^{12133012021231} is an apocalyptic number.

12133012021231 is a deficient number, since it is larger than the sum of its proper divisors (185480601).

12133012021231 is an equidigital number, since it uses as much as digits as its factorization.

12133012021231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185480600.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12133012021231 its reverse (13212021033121), we get a palindrome (25345033054352).

The spelling of 12133012021231 in words is "twelve trillion, one hundred thirty-three billion, twelve million, twenty-one thousand, two hundred thirty-one".