113213511 has 16 divisors (see below), whose sum is σ = 167915520. Its totient is φ = 75389400.

The previous prime is 113213497. The next prime is 113213549. The reversal of 113213511 is 115312311.

It is not a de Polignac number, because 113213511 - 2¹⁰ = 113212487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113213561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29256 + ... + 32898.

It is an arithmetic number, because the mean of its divisors is an integer number (10494720).

Almost surely, 2^113213511 is an apocalyptic number.

113213511 is a deficient number, since it is larger than the sum of its proper divisors (54702009).

113213511 is a wasteful number, since it uses less digits than its factorization.

113213511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803 (or 4797 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 113213511 is about 10640.1837860067. The cubic root of 113213511 is about 483.7631160436.

Adding to 113213511 its reverse (115312311), we get a palindrome (228525822).

The spelling of 113213511 in words is "one hundred thirteen million, two hundred thirteen thousand, five hundred eleven".