12365428211 has 18 divisors (see below), whose sum is σ = 13021626060. Its totient is φ = 11738530680.

The previous prime is 12365428189. The next prime is 12365428213. The reversal of 12365428211 is 11282456321.

It is not a de Polignac number, because 12365428211 - 2⁶ = 12365428147 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12365428213) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26478200 + ... + 26478666.

It is an arithmetic number, because the mean of its divisors is an integer number (723423670).

Almost surely, 2^12365428211 is an apocalyptic number.

12365428211 is a deficient number, since it is larger than the sum of its proper divisors (656197849).

12365428211 is an frugal number, since it uses more digits than its factorization.

12365428211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 557 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The spelling of 12365428211 in words is "twelve billion, three hundred sixty-five million, four hundred twenty-eight thousand, two hundred eleven".