12311121232013 has 8 divisors (see below), whose sum is σ = 12322535947776. Its totient is φ = 12299706977200.

The previous prime is 12311121231991. The next prime is 12311121232021. The reversal of 12311121232013 is 31023212111321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12311121232013 - 2²⁴ = 12311104454797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12311121232013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311121232063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77197628 + ... + 77356938.

It is an arithmetic number, because the mean of its divisors is an integer number (1540316993472).

Almost surely, 2^{12311121232013} is an apocalyptic number.

It is an amenable number.

12311121232013 is a deficient number, since it is larger than the sum of its proper divisors (11414715763).

12311121232013 is a wasteful number, since it uses less digits than its factorization.

12311121232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230475.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12311121232013 its reverse (31023212111321), we get a palindrome (43334333343334).

The spelling of 12311121232013 in words is "twelve trillion, three hundred eleven billion, one hundred twenty-one million, two hundred thirty-two thousand, thirteen".