1120321020 has 96 divisors (see below), whose sum is σ = 3860817408. Its totient is φ = 236374272.

The previous prime is 1120320991. The next prime is 1120321031. The reversal of 1120321020 is 201230211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1120320987 and 1120321005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97134 + ... + 108053.

It is an arithmetic number, because the mean of its divisors is an integer number (40216848).

Almost surely, 2^1120321020 is an apocalyptic number.

1120321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120321020 is an abundant number, since it is smaller than the sum of its proper divisors (2740496388).

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

1120321020 is a wasteful number, since it uses less digits than its factorization.

1120321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205219 (or 205217 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1120321020 is about 33471.1968713400. The cubic root of 1120321020 is about 1038.5980308002.

Adding to 1120321020 its reverse (201230211), we get a palindrome (1321551231).

It can be divided in two parts, 11203 and 21020, that added together give a palindrome (32223).

The spelling of 1120321020 in words is "one billion, one hundred twenty million, three hundred twenty-one thousand, twenty".