11974390231 has 2 divisors, whose sum is σ = 11974390232. Its totient is φ = 11974390230.

The previous prime is 11974390217. The next prime is 11974390237. The reversal of 11974390231 is 13209347911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11974390231 - 2¹⁵ = 11974357463 is a prime.

It is a super-2 number, since 2×11974390231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11974390237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5987195115 + 5987195116.

It is an arithmetic number, because the mean of its divisors is an integer number (5987195116).

Almost surely, 2^11974390231 is an apocalyptic number.

11974390231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11974390231 is an equidigital number, since it uses as much as digits as its factorization.

11974390231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 11974390231 in words is "eleven billion, nine hundred seventy-four million, three hundred ninety thousand, two hundred thirty-one".