11972964431211 has 16 divisors (see below), whose sum is σ = 18553746336000. Its totient is φ = 6725733045408.

The previous prime is 11972964431209. The next prime is 11972964431221. The reversal of 11972964431211 is 11213446927911.

It is a happy number.

It is not a de Polignac number, because 11972964431211 - 2¹ = 11972964431209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11972964431221) 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, 4831703536 + ... + 4831706013.

It is an arithmetic number, because the mean of its divisors is an integer number (1159609146000).

Almost surely, 2^{11972964431211} is an apocalyptic number.

11972964431211 is a deficient number, since it is larger than the sum of its proper divisors (6580781904789).

11972964431211 is an equidigital number, since it uses as much as digits as its factorization.

11972964431211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9663409618.

The product of its digits is 653184, while the sum is 51.

The spelling of 11972964431211 in words is "eleven trillion, nine hundred seventy-two billion, nine hundred sixty-four million, four hundred thirty-one thousand, two hundred eleven".