113246421991 has 2 divisors, whose sum is σ = 113246421992. Its totient is φ = 113246421990.

The previous prime is 113246421983. The next prime is 113246422001. The reversal of 113246421991 is 199124642311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113246421991 - 2³ = 113246421983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113246421931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56623210995 + 56623210996.

It is an arithmetic number, because the mean of its divisors is an integer number (56623210996).

Almost surely, 2^113246421991 is an apocalyptic number.

113246421991 is a deficient number, since it is larger than the sum of its proper divisors (1).

113246421991 is an equidigital number, since it uses as much as digits as its factorization.

113246421991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The spelling of 113246421991 in words is "one hundred thirteen billion, two hundred forty-six million, four hundred twenty-one thousand, nine hundred ninety-one".