112129999 has 2 divisors, whose sum is σ = 112130000. Its totient is φ = 112129998.

The previous prime is 112129981. The next prime is 112130003. The reversal of 112129999 is 999921211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112129999 - 2⁹ = 112129487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112129949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56064999 + 56065000.

It is an arithmetic number, because the mean of its divisors is an integer number (56065000).

Almost surely, 2^112129999 is an apocalyptic number.

112129999 is a deficient number, since it is larger than the sum of its proper divisors (1).

112129999 is an equidigital number, since it uses as much as digits as its factorization.

112129999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 43.

The square root of 112129999 is about 10589.1453385058. The cubic root of 112129999 is about 482.2148783944.

The spelling of 112129999 in words is "one hundred twelve million, one hundred twenty-nine thousand, nine hundred ninety-nine".