2331231213919 has 2 divisors, whose sum is σ = 2331231213920. Its totient is φ = 2331231213918.

The previous prime is 2331231213911. The next prime is 2331231213923. The reversal of 2331231213919 is 9193121321332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2331231213919 - 2³ = 2331231213911 is a prime.

It is a super-2 number, since 2×2331231213919² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2331231213911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165615606959 + 1165615606960.

It is an arithmetic number, because the mean of its divisors is an integer number (1165615606960).

Almost surely, 2^{2331231213919} is an apocalyptic number.

2331231213919 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331231213919 is an equidigital number, since it uses as much as digits as its factorization.

2331231213919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 40.

The spelling of 2331231213919 in words is "two trillion, three hundred thirty-one billion, two hundred thirty-one million, two hundred thirteen thousand, nine hundred nineteen".