12312003013311 has 16 divisors (see below), whose sum is σ = 16709935285760. Its totient is φ = 8062113047040.

The previous prime is 12312003013279. The next prime is 12312003013357. The reversal of 12312003013311 is 11331030021321.

It is a happy number.

It is not a de Polignac number, because 12312003013311 - 2⁵ = 12312003013279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312003013411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134538145 + ... + 134629626.

It is an arithmetic number, because the mean of its divisors is an integer number (1044370955360).

Almost surely, 2^{12312003013311} is an apocalyptic number.

12312003013311 is a deficient number, since it is larger than the sum of its proper divisors (4397932272449).

12312003013311 is a wasteful number, since it uses less digits than its factorization.

12312003013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269168046.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 12312003013311 its reverse (11331030021321), we get a palindrome (23643033034632).

The spelling of 12312003013311 in words is "twelve trillion, three hundred twelve billion, three million, thirteen thousand, three hundred eleven".