123331013321 has 4 divisors (see below), whose sum is σ = 123396861972. Its totient is φ = 123265164672.

The previous prime is 123331013317. The next prime is 123331013413. The reversal of 123331013321 is 123310133321.

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 11012193721 + 112318819600 = 104939^2 + 335140^2 .

It is a cyclic number.

It is not a de Polignac number, because 123331013321 - 2² = 123331013317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123331013021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32921516 + ... + 32925261.

It is an arithmetic number, because the mean of its divisors is an integer number (30849215493).

Almost surely, 2^123331013321 is an apocalyptic number.

It is an amenable number.

123331013321 is a deficient number, since it is larger than the sum of its proper divisors (65848651).

123331013321 is an equidigital number, since it uses as much as digits as its factorization.

123331013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65848650.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123331013321 its reverse (123310133321), we get a palindrome (246641146642).

The spelling of 123331013321 in words is "one hundred twenty-three billion, three hundred thirty-one million, thirteen thousand, three hundred twenty-one".