123020011230311 has 4 divisors (see below), whose sum is σ = 132483089017272. Its totient is φ = 113556933443352.

The previous prime is 123020011230257. The next prime is 123020011230407. The reversal of 123020011230311 is 113032110020321.

It is a happy number.

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 123020011230311 - 2⁶ = 123020011230247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123020011232311) 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, 4731538893461 + ... + 4731538893486.

It is an arithmetic number, because the mean of its divisors is an integer number (33120772254318).

Almost surely, 2^{123020011230311} is an apocalyptic number.

123020011230311 is a deficient number, since it is larger than the sum of its proper divisors (9463077786961).

123020011230311 is an equidigital number, since it uses as much as digits as its factorization.

123020011230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9463077786960.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123020011230311 its reverse (113032110020321), we get a palindrome (236052121250632).

The spelling of 123020011230311 in words is "one hundred twenty-three trillion, twenty billion, eleven million, two hundred thirty thousand, three hundred eleven".