1112213431 has 16 divisors (see below), whose sum is σ = 1338946560. Its totient is φ = 902512800.

The previous prime is 1112213419. The next prime is 1112213441. The reversal of 1112213431 is 1343122111.

It is not a de Polignac number, because 1112213431 - 2¹⁷ = 1112082359 is a prime.

It is a super-2 number, since 2×1112213431² = 2474037432193583522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1112213399 and 1112213408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112213441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310905 + ... + 314461.

It is an arithmetic number, because the mean of its divisors is an integer number (83684160).

Almost surely, 2^1112213431 is an apocalyptic number.

1112213431 is a deficient number, since it is larger than the sum of its proper divisors (226733129).

1112213431 is a wasteful number, since it uses less digits than its factorization.

1112213431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5934.

The product of its digits is 144, while the sum is 19.

The square root of 1112213431 is about 33349.8640327063. The cubic root of 1112213431 is about 1036.0865718639.

Adding to 1112213431 its reverse (1343122111), we get a palindrome (2455335542).

The spelling of 1112213431 in words is "one billion, one hundred twelve million, two hundred thirteen thousand, four hundred thirty-one".