3123123133 has 8 divisors (see below), whose sum is σ = 3366966008. Its totient is φ = 2879794944.

The previous prime is 3123123109. The next prime is 3123123161. The reversal of 3123123133 is 3313213213.

It can be written as a sum of positive squares in 4 ways, for example, as 213444 + 3122909689 = 462^2 + 55883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3123123133 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 (3123123433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116016 + ... + 140377.

It is an arithmetic number, because the mean of its divisors is an integer number (420870751).

Almost surely, 2^3123123133 is an apocalyptic number.

It is an amenable number.

3123123133 is a deficient number, since it is larger than the sum of its proper divisors (243842875).

3123123133 is a wasteful number, since it uses less digits than its factorization.

3123123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257343.

The product of its digits is 972, while the sum is 22.

The square root of 3123123133 is about 55884.9097073620. The cubic root of 3123123133 is about 1461.7161175620.

Adding to 3123123133 its reverse (3313213213), we get a palindrome (6436336346).

The spelling of 3123123133 in words is "three billion, one hundred twenty-three million, one hundred twenty-three thousand, one hundred thirty-three".