123310321221323 has 4 divisors (see below), whose sum is σ = 123341785966560. Its totient is φ = 123278856476088.

The previous prime is 123310321221293. The next prime is 123310321221427. The reversal of 123310321221323 is 323122123013321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123310321221323 is a prime.

It is a super-2 number, since 2×123310321221323² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123310324221323) 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, 15732366740 + ... + 15732374577.

It is an arithmetic number, because the mean of its divisors is an integer number (30835446491640).

Almost surely, 2^{123310321221323} is an apocalyptic number.

123310321221323 is a deficient number, since it is larger than the sum of its proper divisors (31464745237).

123310321221323 is an equidigital number, since it uses as much as digits as its factorization.

123310321221323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31464745236.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 123310321221323 its reverse (323122123013321), we get a palindrome (446432444234644).

The spelling of 123310321221323 in words is "one hundred twenty-three trillion, three hundred ten billion, three hundred twenty-one million, two hundred twenty-one thousand, three hundred twenty-three".