12109912311 has 32 divisors (see below), whose sum is σ = 19551628800. Its totient is φ = 6508578816.

The previous prime is 12109912301. The next prime is 12109912327. The reversal of 12109912311 is 11321990121.

It is not a de Polignac number, because 12109912311 - 2⁵ = 12109912279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12109912301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 570415 + ... + 591263.

It is an arithmetic number, because the mean of its divisors is an integer number (610988400).

Almost surely, 2^12109912311 is an apocalyptic number.

12109912311 is a deficient number, since it is larger than the sum of its proper divisors (7441716489).

12109912311 is a wasteful number, since it uses less digits than its factorization.

12109912311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22503.

The product of its (nonzero) digits is 972, while the sum is 30.

The spelling of 12109912311 in words is "twelve billion, one hundred nine million, nine hundred twelve thousand, three hundred eleven".