312002111189 has 2 divisors, whose sum is σ = 312002111190. Its totient is φ = 312002111188.

The previous prime is 312002111143. The next prime is 312002111207. The reversal of 312002111189 is 981111200213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263331132964 + 48670978225 = 513158^2 + 220615^2 .

It is a cyclic number.

It is not a de Polignac number, because 312002111189 - 2²⁸ = 311733675733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312002111089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156001055594 + 156001055595.

It is an arithmetic number, because the mean of its divisors is an integer number (156001055595).

Almost surely, 2^312002111189 is an apocalyptic number.

It is an amenable number.

312002111189 is a deficient number, since it is larger than the sum of its proper divisors (1).

312002111189 is an equidigital number, since it uses as much as digits as its factorization.

312002111189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 312002111189 in words is "three hundred twelve billion, two million, one hundred eleven thousand, one hundred eighty-nine".