1113223431 has 32 divisors (see below), whose sum is σ = 1570947840. Its totient is φ = 700358400.

The previous prime is 1113223409. The next prime is 1113223499. The reversal of 1113223431 is 1343223111.

It is not a de Polignac number, because 1113223431 - 2²² = 1109029127 is a prime.

It is a super-2 number, since 2×1113223431² = 2478532814654823522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1113223398 and 1113223407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113223031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 575536 + ... + 577466.

It is an arithmetic number, because the mean of its divisors is an integer number (49092120).

Almost surely, 2^1113223431 is an apocalyptic number.

1113223431 is a deficient number, since it is larger than the sum of its proper divisors (457724409).

1113223431 is a wasteful number, since it uses less digits than its factorization.

1113223431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2127.

The product of its digits is 432, while the sum is 21.

The square root of 1113223431 is about 33365.0030870671. The cubic root of 1113223431 is about 1036.4001000678.

Adding to 1113223431 its reverse (1343223111), we get a palindrome (2456446542).

The spelling of 1113223431 in words is "one billion, one hundred thirteen million, two hundred twenty-three thousand, four hundred thirty-one".