12013331334231 has 4 divisors (see below), whose sum is σ = 16017775112312. Its totient is φ = 8008887556152.

The previous prime is 12013331334149. The next prime is 12013331334313. The reversal of 12013331334231 is 13243313331021.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (12013331334149) and next prime (12013331334313).

It is not a de Polignac number, because 12013331334231 - 2¹⁵ = 12013331301463 is a prime.

It is a super-2 number, since 2×12013331334231² (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 (12013331334131) 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, 2002221889036 + ... + 2002221889041.

It is an arithmetic number, because the mean of its divisors is an integer number (4004443778078).

Almost surely, 2^{12013331334231} is an apocalyptic number.

12013331334231 is a deficient number, since it is larger than the sum of its proper divisors (4004443778081).

12013331334231 is an equidigital number, since it uses as much as digits as its factorization.

12013331334231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004443778080.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 12013331334231 its reverse (13243313331021), we get a palindrome (25256644665252).

The spelling of 12013331334231 in words is "twelve trillion, thirteen billion, three hundred thirty-one million, three hundred thirty-four thousand, two hundred thirty-one".