1232311004321 has 4 divisors (see below), whose sum is σ = 1232316030000. Its totient is φ = 1232305978644.

The previous prime is 1232311004273. The next prime is 1232311004333. The reversal of 1232311004321 is 1234001132321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1232311004321 - 2²⁶ = 1232243895457 is a prime.

It is a super-2 number, since 2×1232311004321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232311004381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2125091 + ... + 2642088.

It is an arithmetic number, because the mean of its divisors is an integer number (308079007500).

Almost surely, 2^{1232311004321} is an apocalyptic number.

It is an amenable number.

1232311004321 is a deficient number, since it is larger than the sum of its proper divisors (5025679).

1232311004321 is an equidigital number, since it uses as much as digits as its factorization.

1232311004321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025678.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1232311004321 its reverse (1234001132321), we get a palindrome (2466312136642).

The spelling of 1232311004321 in words is "one trillion, two hundred thirty-two billion, three hundred eleven million, four thousand, three hundred twenty-one".