11999993051 has 2 divisors, whose sum is σ = 11999993052. Its totient is φ = 11999993050.

The previous prime is 11999993029. The next prime is 11999993063. The reversal of 11999993051 is 15039999911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11999993051 - 2¹⁸ = 11999730907 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11999993851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5999996525 + 5999996526.

It is an arithmetic number, because the mean of its divisors is an integer number (5999996526).

Almost surely, 2^11999993051 is an apocalyptic number.

11999993051 is a deficient number, since it is larger than the sum of its proper divisors (1).

11999993051 is an equidigital number, since it uses as much as digits as its factorization.

11999993051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 885735, while the sum is 56.

The spelling of 11999993051 in words is "eleven billion, nine hundred ninety-nine million, nine hundred ninety-three thousand, fifty-one".