12311124409 has 2 divisors, whose sum is σ = 12311124410. Its totient is φ = 12311124408.

The previous prime is 12311124389. The next prime is 12311124443. The reversal of 12311124409 is 90442111321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10700868025 + 1610256384 = 103445^2 + 40128^2 .

It is a cyclic number.

It is not a de Polignac number, because 12311124409 - 2⁵ = 12311124377 is a prime.

It is not a weakly prime, because it can be changed into another prime (12311121409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155562204 + 6155562205.

It is an arithmetic number, because the mean of its divisors is an integer number (6155562205).

Almost surely, 2^12311124409 is an apocalyptic number.

It is an amenable number.

12311124409 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311124409 is an equidigital number, since it uses as much as digits as its factorization.

12311124409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 12311124409 in words is "twelve billion, three hundred eleven million, one hundred twenty-four thousand, four hundred nine".