123320322131123 has 16 divisors (see below), whose sum is σ = 134553880675200. Its totient is φ = 112337809683840.

The previous prime is 123320322131077. The next prime is 123320322131221. The reversal of 123320322131123 is 321131223023321.

It is not a de Polignac number, because 123320322131123 - 2¹² = 123320322127027 is a prime.

It is a super-2 number, since 2×123320322131123² (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 (123320322130123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27506708 + ... + 31674273.

It is an arithmetic number, because the mean of its divisors is an integer number (8409617542200).

Almost surely, 2^{123320322131123} is an apocalyptic number.

123320322131123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123320322131123 is a deficient number, since it is larger than the sum of its proper divisors (11233558544077).

123320322131123 is a wasteful number, since it uses less digits than its factorization.

123320322131123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59183102.

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

Adding to 123320322131123 its reverse (321131223023321), we get a palindrome (444451545154444).

The spelling of 123320322131123 in words is "one hundred twenty-three trillion, three hundred twenty billion, three hundred twenty-two million, one hundred thirty-one thousand, one hundred twenty-three".