123202130101123 has 4 divisors (see below), whose sum is σ = 123203051640928. Its totient is φ = 123201208561320.

The previous prime is 123202130101033. The next prime is 123202130101139. The reversal of 123202130101123 is 321101031202321.

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

It is a cyclic number.

It is not a de Polignac number, because 123202130101123 - 2²¹ = 123202128003971 is a prime.

It is a super-2 number, since 2×123202130101123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123202130101094 and 123202130101103.

It is not an unprimeable number, because it can be changed into a prime (123202130102123) 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, 460569336 + ... + 460836757.

It is an arithmetic number, because the mean of its divisors is an integer number (30800762910232).

Almost surely, 2^{123202130101123} is an apocalyptic number.

123202130101123 is a deficient number, since it is larger than the sum of its proper divisors (921539805).

123202130101123 is an equidigital number, since it uses as much as digits as its factorization.

123202130101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921539804.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 123202130101123 its reverse (321101031202321), we get a palindrome (444303161303444).

The spelling of 123202130101123 in words is "one hundred twenty-three trillion, two hundred two billion, one hundred thirty million, one hundred one thousand, one hundred twenty-three".