1122320403 has 6 divisors (see below), whose sum is σ = 1621129484. Its totient is φ = 748213596.

The previous prime is 1122320389. The next prime is 1122320413. The reversal of 1122320403 is 3040232211.

It is not a de Polignac number, because 1122320403 - 2²⁵ = 1088765971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122320413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62351125 + ... + 62351142.

Almost surely, 2^1122320403 is an apocalyptic number.

1122320403 is a deficient number, since it is larger than the sum of its proper divisors (498809081).

1122320403 is a wasteful number, since it uses less digits than its factorization.

1122320403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124702273 (or 124702270 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1122320403 is about 33501.0507745653. The cubic root of 1122320403 is about 1039.2155089229.

Adding to 1122320403 its reverse (3040232211), we get a palindrome (4162552614).

It can be divided in two parts, 11223 and 20403, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 1122320403 in words is "one billion, one hundred twenty-two million, three hundred twenty thousand, four hundred three".