112123400009 has 2 divisors, whose sum is σ = 112123400010. Its totient is φ = 112123400008.

The previous prime is 112123399981. The next prime is 112123400017. The reversal of 112123400009 is 900004321211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56108344384 + 56015055625 = 236872^2 + 236675^2 .

It is a cyclic number.

It is not a de Polignac number, because 112123400009 - 2²⁰ = 112122351433 is a prime.

It is not a weakly prime, because it can be changed into another prime (112123400309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56061700004 + 56061700005.

It is an arithmetic number, because the mean of its divisors is an integer number (56061700005).

Almost surely, 2^112123400009 is an apocalyptic number.

It is an amenable number.

112123400009 is a deficient number, since it is larger than the sum of its proper divisors (1).

112123400009 is an equidigital number, since it uses as much as digits as its factorization.

112123400009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 112123400009 in words is "one hundred twelve billion, one hundred twenty-three million, four hundred thousand, nine".