113211512 has 8 divisors (see below), whose sum is σ = 212271600. Its totient is φ = 56605752.

The previous prime is 113211509. The next prime is 113211521. The reversal of 113211512 is 215112311.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×113211512² = 25633692898652288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7075712 + ... + 7075727.

It is an arithmetic number, because the mean of its divisors is an integer number (26533950).

Almost surely, 2^113211512 is an apocalyptic number.

It is an amenable number.

113211512 is a deficient number, since it is larger than the sum of its proper divisors (99060088).

113211512 is a wasteful number, since it uses less digits than its factorization.

113211512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14151445 (or 14151441 counting only the distinct ones).

The product of its digits is 60, while the sum is 17.

The square root of 113211512 is about 10640.0898492447. The cubic root of 113211512 is about 483.7602687740.

Adding to 113211512 its reverse (215112311), we get a palindrome (328323823).

The spelling of 113211512 in words is "one hundred thirteen million, two hundred eleven thousand, five hundred twelve".