1020331120 has 40 divisors (see below), whose sum is σ = 2381548464. Its totient is φ = 406536192.

The previous prime is 1020331111. The next prime is 1020331121. The reversal of 1020331120 is 211330201.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1020331120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020331121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4254 + ... + 45373.

Almost surely, 2^1020331120 is an apocalyptic number.

1020331120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020331120 is an abundant number, since it is smaller than the sum of its proper divisors (1361217344).

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

1020331120 is a wasteful number, since it uses less digits than its factorization.

1020331120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49897 (or 49891 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1020331120 is about 31942.6223093847. The cubic root of 1020331120 is about 1006.7316235636.

Adding to 1020331120 its reverse (211330201), we get a palindrome (1231661321).

The spelling of 1020331120 in words is "one billion, twenty million, three hundred thirty-one thousand, one hundred twenty".