123364100 has 18 divisors (see below), whose sum is σ = 267700314. Its totient is φ = 49345600.

The previous prime is 123364099. The next prime is 123364123. The reversal of 123364100 is 1463321.

It can be written as a sum of positive squares in 3 ways, for example, as 4946176 + 118417924 = 2224^2 + 10882^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616721 + ... + 616920.

Almost surely, 2^123364100 is an apocalyptic number.

123364100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123364100 is an abundant number, since it is smaller than the sum of its proper divisors (144336214).

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

123364100 is a wasteful number, since it uses less digits than its factorization.

123364100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233655 (or 1233648 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 123364100 is about 11106.9392723648. The cubic root of 123364100 is about 497.8092149413.

The spelling of 123364100 in words is "one hundred twenty-three million, three hundred sixty-four thousand, one hundred".