11946390400331 has 2 divisors, whose sum is σ = 11946390400332. Its totient is φ = 11946390400330.

The previous prime is 11946390400313. The next prime is 11946390400471. The reversal of 11946390400331 is 13300409364911.

Together with previous prime (11946390400313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11946390400331 - 2¹⁴ = 11946390383947 is a prime.

It is a super-2 number, since 2×11946390400331² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11946390400031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5973195200165 + 5973195200166.

It is an arithmetic number, because the mean of its divisors is an integer number (5973195200166).

Almost surely, 2^{11946390400331} is an apocalyptic number.

11946390400331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11946390400331 is an equidigital number, since it uses as much as digits as its factorization.

11946390400331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 11946390400331 in words is "eleven trillion, nine hundred forty-six billion, three hundred ninety million, four hundred thousand, three hundred thirty-one".