112142431 has 4 divisors (see below), whose sum is σ = 112856872. Its totient is φ = 111427992.

The previous prime is 112142413. The next prime is 112142467. The reversal of 112142431 is 134241211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134241211 = 13 ⋅10326247.

It is a cyclic number.

It is not a de Polignac number, because 112142431 - 2⁹ = 112141919 is a prime.

It is a super-2 number, since 2×112142431² = 25151849661179522, 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 = 112142399 and 112142408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112142231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356985 + ... + 357298.

It is an arithmetic number, because the mean of its divisors is an integer number (28214218).

Almost surely, 2^112142431 is an apocalyptic number.

112142431 is a deficient number, since it is larger than the sum of its proper divisors (714441).

112142431 is an equidigital number, since it uses as much as digits as its factorization.

112142431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714440.

The product of its digits is 192, while the sum is 19.

The square root of 112142431 is about 10589.7323384494. The cubic root of 112142431 is about 482.2326990011.

Adding to 112142431 its reverse (134241211), we get a palindrome (246383642).

The spelling of 112142431 in words is "one hundred twelve million, one hundred forty-two thousand, four hundred thirty-one".