1232113001321 has 4 divisors (see below), whose sum is σ = 1233732073044. Its totient is φ = 1230493929600.

The previous prime is 1232113001303. The next prime is 1232113001333. The reversal of 1232113001321 is 1231003112321.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 156040800400 + 1076072200921 = 395020^2 + 1037339^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232113001321 - 2¹⁰ = 1232113000297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1232113001293 and 1232113001302.

It is not an unprimeable number, because it can be changed into a prime (1232110001321) 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, 809534720 + ... + 809536241.

It is an arithmetic number, because the mean of its divisors is an integer number (308433018261).

Almost surely, 2^{1232113001321} is an apocalyptic number.

It is an amenable number.

1232113001321 is a deficient number, since it is larger than the sum of its proper divisors (1619071723).

1232113001321 is an equidigital number, since it uses as much as digits as its factorization.

1232113001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619071722.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1232113001321 its reverse (1231003112321), we get a palindrome (2463116113642).

The spelling of 1232113001321 in words is "one trillion, two hundred thirty-two billion, one hundred thirteen million, one thousand, three hundred twenty-one".