121322323311123 has 16 divisors (see below), whose sum is σ = 178118075350656. Its totient is φ = 72841496859840.

The previous prime is 121322323311089. The next prime is 121322323311169. The reversal of 121322323311123 is 321113323223121.

It is a happy number.

It is not a de Polignac number, because 121322323311123 - 2²¹ = 121322321213971 is a prime.

It is a super-2 number, since 2×121322323311123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121322323311323) 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, 17179594786 + ... + 17179601847.

It is an arithmetic number, because the mean of its divisors is an integer number (11132379709416).

Almost surely, 2^{121322323311123} is an apocalyptic number.

121322323311123 is a deficient number, since it is larger than the sum of its proper divisors (56795752039533).

121322323311123 is a wasteful number, since it uses less digits than its factorization.

121322323311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34359196754.

The product of its digits is 7776, while the sum is 30.

Adding to 121322323311123 its reverse (321113323223121), we get a palindrome (442435646534244).

The spelling of 121322323311123 in words is "one hundred twenty-one trillion, three hundred twenty-two billion, three hundred twenty-three million, three hundred eleven thousand, one hundred twenty-three".