20112113999 has 2 divisors, whose sum is σ = 20112114000. Its totient is φ = 20112113998.

The previous prime is 20112113969. The next prime is 20112114049. The reversal of 20112113999 is 99931121102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112113999 - 2⁸ = 20112113743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112113929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056056999 + 10056057000.

It is an arithmetic number, because the mean of its divisors is an integer number (10056057000).

Almost surely, 2^20112113999 is an apocalyptic number.

20112113999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112113999 is an equidigital number, since it uses as much as digits as its factorization.

20112113999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 20112113999 in words is "twenty billion, one hundred twelve million, one hundred thirteen thousand, nine hundred ninety-nine".