111000012101999 has 2 divisors, whose sum is σ = 111000012102000. Its totient is φ = 111000012101998.

The previous prime is 111000012101963. The next prime is 111000012102043. The reversal of 111000012101999 is 999101210000111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000012101999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111000012161999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500006050999 + 55500006051000.

It is an arithmetic number, because the mean of its divisors is an integer number (55500006051000).

Almost surely, 2^{111000012101999} is an apocalyptic number.

111000012101999 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000012101999 is an equidigital number, since it uses as much as digits as its factorization.

111000012101999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 35.

The spelling of 111000012101999 in words is "one hundred eleven trillion, twelve million, one hundred one thousand, nine hundred ninety-nine".