11944434331 has 2 divisors, whose sum is σ = 11944434332. Its totient is φ = 11944434330.

The previous prime is 11944434319. The next prime is 11944434371. The reversal of 11944434331 is 13343444911.

It is a weak prime.

It is an emirp because it is prime and its reverse (13343444911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11944434331 - 2²¹ = 11942337179 is a prime.

It is a super-2 number, since 2×11944434331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11944434371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5972217165 + 5972217166.

It is an arithmetic number, because the mean of its divisors is an integer number (5972217166).

Almost surely, 2^11944434331 is an apocalyptic number.

11944434331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11944434331 is an equidigital number, since it uses as much as digits as its factorization.

11944434331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The spelling of 11944434331 in words is "eleven billion, nine hundred forty-four million, four hundred thirty-four thousand, three hundred thirty-one".