113240431 has 8 divisors (see below), whose sum is σ = 118270944. Its totient is φ = 108218880.

The previous prime is 113240429. The next prime is 113240443. The reversal of 113240431 is 134042311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113240431 - 2¹ = 113240429 is a prime.

It is a super-2 number, since 2×113240431² = 25646790426131522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113240399 and 113240408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113240731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45171 + ... + 47611.

It is an arithmetic number, because the mean of its divisors is an integer number (14783868).

Almost surely, 2^113240431 is an apocalyptic number.

113240431 is a deficient number, since it is larger than the sum of its proper divisors (5030513).

113240431 is a wasteful number, since it uses less digits than its factorization.

113240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 113240431 is about 10641.4487265597. The cubic root of 113240431 is about 483.8014561996.

Adding to 113240431 its reverse (134042311), we get a palindrome (247282742).

The spelling of 113240431 in words is "one hundred thirteen million, two hundred forty thousand, four hundred thirty-one".