124021311233 has 4 divisors (see below), whose sum is σ = 131316682500. Its totient is φ = 116725939968.

The previous prime is 124021311221. The next prime is 124021311251. The reversal of 124021311233 is 332113120421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332113120421 = 292711 ⋅1134611.

It can be written as a sum of positive squares in 2 ways, for example, as 108493160689 + 15528150544 = 329383^2 + 124612^2 .

It is a cyclic number.

It is not a de Polignac number, because 124021311233 - 2²⁶ = 123954202369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124021311199 and 124021311208.

It is not an unprimeable number, because it can be changed into a prime (124021311203) 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, 3647685608 + ... + 3647685641.

It is an arithmetic number, because the mean of its divisors is an integer number (32829170625).

Almost surely, 2^124021311233 is an apocalyptic number.

It is an amenable number.

124021311233 is a deficient number, since it is larger than the sum of its proper divisors (7295371267).

124021311233 is an equidigital number, since it uses as much as digits as its factorization.

124021311233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295371266.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 124021311233 its reverse (332113120421), we get a palindrome (456134431654).

The spelling of 124021311233 in words is "one hundred twenty-four billion, twenty-one million, three hundred eleven thousand, two hundred thirty-three".