123133100 has 36 divisors (see below), whose sum is σ = 267878688. Its totient is φ = 49128000.

The previous prime is 123133093. The next prime is 123133117. The reversal of 123133100 is 1331321.

It is a super-2 number, since 2×123133100² = 30323520631220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44765 + ... + 47435.

Almost surely, 2^123133100 is an apocalyptic number.

123133100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123133100 is an abundant number, since it is smaller than the sum of its proper divisors (144745588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123133100 is a wasteful number, since it uses less digits than its factorization.

123133100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146 (or 3139 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 123133100 is about 11096.5354953697. The cubic root of 123133100 is about 497.4983039091.

Adding to 123133100 its reverse (1331321), we get a palindrome (124464421).

The spelling of 123133100 in words is "one hundred twenty-three million, one hundred thirty-three thousand, one hundred".