113021212 has 6 divisors (see below), whose sum is σ = 197787128. Its totient is φ = 56510604.

The previous prime is 113021197. The next prime is 113021213. The reversal of 113021212 is 212120311.

It is a junction number, because it is equal to n+sod(n) for n = 113021192 and 113021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113021213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14127648 + ... + 14127655.

Almost surely, 2^113021212 is an apocalyptic number.

It is an amenable number.

113021212 is a deficient number, since it is larger than the sum of its proper divisors (84765916).

113021212 is a wasteful number, since it uses less digits than its factorization.

113021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28255307 (or 28255305 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 113021212 is about 10631.1434944694. The cubic root of 113021212 is about 483.4890619345.

Adding to 113021212 its reverse (212120311), we get a palindrome (325141523).

Subtracting 113021212 from its reverse (212120311), we obtain a palindrome (99099099).

The spelling of 113021212 in words is "one hundred thirteen million, twenty-one thousand, two hundred twelve".