1112355431 has 4 divisors (see below), whose sum is σ = 1213478664. Its totient is φ = 1011232200.

The previous prime is 1112355427. The next prime is 1112355449. The reversal of 1112355431 is 1345532111.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1112355431 - 2² = 1112355427 is a prime.

It is a super-2 number, since 2×1112355431² = 2474669209750391522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1112355431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112355031) 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, 50561600 + ... + 50561621.

It is an arithmetic number, because the mean of its divisors is an integer number (303369666).

Almost surely, 2^1112355431 is an apocalyptic number.

1112355431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112355431 is a deficient number, since it is larger than the sum of its proper divisors (101123233).

1112355431 is a wasteful number, since it uses less digits than its factorization.

1112355431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101123232.

The product of its digits is 1800, while the sum is 26.

The square root of 1112355431 is about 33351.9929089702. The cubic root of 1112355431 is about 1036.1306635308.

Adding to 1112355431 its reverse (1345532111), we get a palindrome (2457887542).

The spelling of 1112355431 in words is "one billion, one hundred twelve million, three hundred fifty-five thousand, four hundred thirty-one".