12133211311 has 16 divisors (see below), whose sum is σ = 13778835840. Its totient is φ = 10591452000.

The previous prime is 12133211309. The next prime is 12133211317. The reversal of 12133211311 is 11311233121.

It is a cyclic number.

It is not a de Polignac number, because 12133211311 - 2¹ = 12133211309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133211317) 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, 95436 + ... + 182686.

It is an arithmetic number, because the mean of its divisors is an integer number (861177240).

Almost surely, 2^12133211311 is an apocalyptic number.

12133211311 is a deficient number, since it is larger than the sum of its proper divisors (1645624529).

12133211311 is a wasteful number, since it uses less digits than its factorization.

12133211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87846.

The product of its digits is 108, while the sum is 19.

Adding to 12133211311 its reverse (11311233121), we get a palindrome (23444444432).

The spelling of 12133211311 in words is "twelve billion, one hundred thirty-three million, two hundred eleven thousand, three hundred eleven".