210031104 has 40 divisors (see below), whose sum is σ = 559540080. Its totient is φ = 70009856.

The previous prime is 210031099. The next prime is 210031177. The reversal of 210031104 is 401130012.

It is a happy number.

It is a super-2 number, since 2×210031104² = 88226129294917632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 210031104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66834 + ... + 69905.

It is an arithmetic number, because the mean of its divisors is an integer number (13988502).

Almost surely, 2^210031104 is an apocalyptic number.

210031104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

210031104 is an abundant number, since it is smaller than the sum of its proper divisors (349508976).

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

210031104 is an equidigital number, since it uses as much as digits as its factorization.

210031104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136760 (or 136744 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 210031104 is about 14492.4498964116. The cubic root of 210031104 is about 594.4215398194.

Adding to 210031104 its reverse (401130012), we get a palindrome (611161116).

The spelling of 210031104 in words is "two hundred ten million, thirty-one thousand, one hundred four".