113140431 has 12 divisors (see below), whose sum is σ = 163581808. Its totient is φ = 75354624.

The previous prime is 113140429. The next prime is 113140451. The reversal of 113140431 is 134041311.

It is not a de Polignac number, because 113140431 - 2¹ = 113140429 is a prime.

It is a super-2 number, since 2×113140431² = 25601514253731522, which contains 22 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 (113140411) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 4926 + ... + 15828.

Almost surely, 2^113140431 is an apocalyptic number.

113140431 is a deficient number, since it is larger than the sum of its proper divisors (50441377).

113140431 is a wasteful number, since it uses less digits than its factorization.

113140431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12062 (or 12059 counting only the distinct ones).

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

The square root of 113140431 is about 10636.7490804287. The cubic root of 113140431 is about 483.6590029748.

Adding to 113140431 its reverse (134041311), we get a palindrome (247181742).

The spelling of 113140431 in words is "one hundred thirteen million, one hundred forty thousand, four hundred thirty-one".