1122403020 has 48 divisors (see below), whose sum is σ = 3196005120. Its totient is φ = 294233536.

The previous prime is 1122402991. The next prime is 1122403021. The reversal of 1122403020 is 203042211.

1122403020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1122403021) 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 15 ways as a sum of consecutive naturals, for example, 154992 + ... + 162071.

It is an arithmetic number, because the mean of its divisors is an integer number (66583440).

Almost surely, 2^1122403020 is an apocalyptic number.

1122403020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122403020 is an abundant number, since it is smaller than the sum of its proper divisors (2073602100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122403020 is a wasteful number, since it uses less digits than its factorization.

1122403020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317134 (or 317132 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1122403020 is about 33502.2838027499. The cubic root of 1122403020 is about 1039.2410081062.

Adding to 1122403020 its reverse (203042211), we get a palindrome (1325445231).

The spelling of 1122403020 in words is "one billion, one hundred twenty-two million, four hundred three thousand, twenty".