123113121233 has 16 divisors (see below), whose sum is σ = 126356889600. Its totient is φ = 119913615360.

The previous prime is 123113121227. The next prime is 123113121239. The reversal of 123113121233 is 332121311321.

It is an interprime number because it is at equal distance from previous prime (123113121227) and next prime (123113121239).

It is not a de Polignac number, because 123113121233 - 2⁶ = 123113121169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123113121199 and 123113121208.

It is not an unprimeable number, because it can be changed into a prime (123113121239) 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, 8074385 + ... + 8089617.

It is an arithmetic number, because the mean of its divisors is an integer number (7897305600).

Almost surely, 2^123113121233 is an apocalyptic number.

It is an amenable number.

123113121233 is a deficient number, since it is larger than the sum of its proper divisors (3243768367).

123113121233 is a wasteful number, since it uses less digits than its factorization.

123113121233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16672.

The product of its digits is 648, while the sum is 23.

Adding to 123113121233 its reverse (332121311321), we get a palindrome (455234432554).

The spelling of 123113121233 in words is "one hundred twenty-three billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred thirty-three".