1231232320411 has 8 divisors (see below), whose sum is σ = 1261204529904. Its totient is φ = 1201320970080.

The previous prime is 1231232320369. The next prime is 1231232320441. The reversal of 1231232320411 is 1140232321321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231232320411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231232320441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15173836 + ... + 15254761.

It is an arithmetic number, because the mean of its divisors is an integer number (157650566238).

Almost surely, 2^{1231232320411} is an apocalyptic number.

1231232320411 is a deficient number, since it is larger than the sum of its proper divisors (29972209493).

1231232320411 is an equidigital number, since it uses as much as digits as its factorization.

1231232320411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30429581.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1231232320411 its reverse (1140232321321), we get a palindrome (2371464641732).

The spelling of 1231232320411 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-two million, three hundred twenty thousand, four hundred eleven".