11970647957431 has 2 divisors, whose sum is σ = 11970647957432. Its totient is φ = 11970647957430.

The previous prime is 11970647957407. The next prime is 11970647957459. The reversal of 11970647957431 is 13475974607911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11970647957431 - 2⁹ = 11970647956919 is a prime.

It is a super-2 number, since 2×11970647957431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11970647957531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5985323978715 + 5985323978716.

It is an arithmetic number, because the mean of its divisors is an integer number (5985323978716).

Almost surely, 2^{11970647957431} is an apocalyptic number.

11970647957431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11970647957431 is an equidigital number, since it uses as much as digits as its factorization.

11970647957431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40007520, while the sum is 64.

The spelling of 11970647957431 in words is "eleven trillion, nine hundred seventy billion, six hundred forty-seven million, nine hundred fifty-seven thousand, four hundred thirty-one".