1231340014409 has 2 divisors, whose sum is σ = 1231340014410. Its totient is φ = 1231340014408.

The previous prime is 1231340014397. The next prime is 1231340014493. The reversal of 1231340014409 is 9044100431321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 902363205184 + 328976809225 = 949928^2 + 573565^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231340014409 - 2⁴ = 1231340014393 is a prime.

It is not a weakly prime, because it can be changed into another prime (1231340014909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615670007204 + 615670007205.

It is an arithmetic number, because the mean of its divisors is an integer number (615670007205).

Almost surely, 2^{1231340014409} is an apocalyptic number.

It is an amenable number.

1231340014409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231340014409 is an equidigital number, since it uses as much as digits as its factorization.

1231340014409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 1231340014409 in words is "one trillion, two hundred thirty-one billion, three hundred forty million, fourteen thousand, four hundred nine".