113212413 has 12 divisors (see below), whose sum is σ = 164055580. Its totient is φ = 75231936.

The previous prime is 113212387. The next prime is 113212441. The reversal of 113212413 is 314212311.

It can be written as a sum of positive squares in 2 ways, for example, as 1127844 + 112084569 = 1062^2 + 10587^2 .

It is not a de Polignac number, because 113212413 - 2⁶ = 113212349 is a prime.

It is a super-4 number, since 4×113212413⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113212453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17278 + ... + 22911.

Almost surely, 2^113212413 is an apocalyptic number.

It is an amenable number.

113212413 is a deficient number, since it is larger than the sum of its proper divisors (50843167).

113212413 is a wasteful number, since it uses less digits than its factorization.

113212413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40508 (or 40505 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 113212413 is about 10640.1321890285. The cubic root of 113212413 is about 483.7615521148.

Adding to 113212413 its reverse (314212311), we get a palindrome (427424724).

The spelling of 113212413 in words is "one hundred thirteen million, two hundred twelve thousand, four hundred thirteen".