1232340515311 has 4 divisors (see below), whose sum is σ = 1232347810824. Its totient is φ = 1232333219800.

The previous prime is 1232340515303. The next prime is 1232340515323. The reversal of 1232340515311 is 1135150432321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1232340515311 - 2³ = 1232340515303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232340515111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3388225 + ... + 3734266.

It is an arithmetic number, because the mean of its divisors is an integer number (308086952706).

Almost surely, 2^{1232340515311} is an apocalyptic number.

1232340515311 is a deficient number, since it is larger than the sum of its proper divisors (7295513).

1232340515311 is an equidigital number, since it uses as much as digits as its factorization.

1232340515311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7295512.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 1232340515311 its reverse (1135150432321), we get a palindrome (2367490947632).

The spelling of 1232340515311 in words is "one trillion, two hundred thirty-two billion, three hundred forty million, five hundred fifteen thousand, three hundred eleven".