213124104 has 48 divisors (see below), whose sum is σ = 611168220. Its totient is φ = 66862080.

The previous prime is 213124099. The next prime is 213124111. The reversal of 213124104 is 401421312.

213124104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 213101604 + 22500 = 14598^2 + 150^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 85837 + ... + 88284.

Almost surely, 2^213124104 is an apocalyptic number.

213124104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

213124104 is an abundant number, since it is smaller than the sum of its proper divisors (398044116).

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

213124104 is a wasteful number, since it uses less digits than its factorization.

213124104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174150 (or 174143 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 213124104 is about 14598.7706331732. The cubic root of 213124104 is about 597.3252270349.

Adding to 213124104 its reverse (401421312), we get a palindrome (614545416).

The spelling of 213124104 in words is "two hundred thirteen million, one hundred twenty-four thousand, one hundred four".