2320416231509 has 2 divisors, whose sum is σ = 2320416231510. Its totient is φ = 2320416231508.

The previous prime is 2320416231409. The next prime is 2320416231557. The reversal of 2320416231509 is 9051326140232.

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., 2317159817284 + 3256414225 = 1522222^2 + 57065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2320416231509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320416231559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160208115754 + 1160208115755.

It is an arithmetic number, because the mean of its divisors is an integer number (1160208115755).

Almost surely, 2^{2320416231509} is an apocalyptic number.

It is an amenable number.

2320416231509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320416231509 is an equidigital number, since it uses as much as digits as its factorization.

2320416231509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 2320416231509 in words is "two trillion, three hundred twenty billion, four hundred sixteen million, two hundred thirty-one thousand, five hundred nine".