312044231008409 has 2 divisors, whose sum is σ = 312044231008410. Its totient is φ = 312044231008408.

The previous prime is 312044231008397. The next prime is 312044231008417. The reversal of 312044231008409 is 904800132440213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196251996946009 + 115792234062400 = 14008997^2 + 10760680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312044231008409 is a prime.

It is a super-2 number, since 2×312044231008409² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312044231008709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156022115504204 + 156022115504205.

It is an arithmetic number, because the mean of its divisors is an integer number (156022115504205).

Almost surely, 2^{312044231008409} is an apocalyptic number.

It is an amenable number.

312044231008409 is a deficient number, since it is larger than the sum of its proper divisors (1).

312044231008409 is an equidigital number, since it uses as much as digits as its factorization.

312044231008409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 312044231008409 in words is "three hundred twelve trillion, forty-four billion, two hundred thirty-one million, eight thousand, four hundred nine".