11864615123 has 2 divisors, whose sum is σ = 11864615124. Its totient is φ = 11864615122.

The previous prime is 11864615051. The next prime is 11864615141. The reversal of 11864615123 is 32151646811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11864615123 - 2²⁴ = 11847837907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11864615143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5932307561 + 5932307562.

It is an arithmetic number, because the mean of its divisors is an integer number (5932307562).

Almost surely, 2^11864615123 is an apocalyptic number.

11864615123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11864615123 is an equidigital number, since it uses as much as digits as its factorization.

11864615123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The spelling of 11864615123 in words is "eleven billion, eight hundred sixty-four million, six hundred fifteen thousand, one hundred twenty-three".