113203212 has 24 divisors (see below), whose sum is σ = 264328512. Its totient is φ = 37707600.

The previous prime is 113203199. The next prime is 113203231. The reversal of 113203212 is 212302311.

It is a junction number, because it is equal to n+sod(n) for n = 113203191 and 113203200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21787 + ... + 26477.

It is an arithmetic number, because the mean of its divisors is an integer number (11013688).

Almost surely, 2^113203212 is an apocalyptic number.

113203212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113203212 is an abundant number, since it is smaller than the sum of its proper divisors (151125300).

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

113203212 is a wasteful number, since it uses less digits than its factorization.

113203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6709 (or 6707 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 113203212 is about 10639.6998077953. The cubic root of 113203212 is about 483.7484463357.

Adding to 113203212 its reverse (212302311), we get a palindrome (325505523).

Subtracting 113203212 from its reverse (212302311), we obtain a palindrome (99099099).

The spelling of 113203212 in words is "one hundred thirteen million, two hundred three thousand, two hundred twelve".