112861720999 has 2 divisors, whose sum is σ = 112861721000. Its totient is φ = 112861720998.

The previous prime is 112861720957. The next prime is 112861721017. The reversal of 112861720999 is 999027168211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112861720999 - 2⁷ = 112861720871 is a prime.

It is a super-2 number, since 2×112861720999² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112861720919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56430860499 + 56430860500.

It is an arithmetic number, because the mean of its divisors is an integer number (56430860500).

Almost surely, 2^112861720999 is an apocalyptic number.

112861720999 is a deficient number, since it is larger than the sum of its proper divisors (1).

112861720999 is an equidigital number, since it uses as much as digits as its factorization.

112861720999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 112861720999 in words is "one hundred twelve billion, eight hundred sixty-one million, seven hundred twenty thousand, nine hundred ninety-nine".