1021120320 has 112 divisors (see below), whose sum is σ = 3536826048. Its totient is φ = 247541760.

The previous prime is 1021120291. The next prime is 1021120333. The reversal of 1021120320 is 230211201.

1021120320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×1021120320⁴ (a number of 37 digits) contains 4444 as substring.

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 = 1021120296 and 1021120305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37789 + ... + 58908.

It is an arithmetic number, because the mean of its divisors is an integer number (31578804).

Almost surely, 2^1021120320 is an apocalyptic number.

1021120320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021120320 is an abundant number, since it is smaller than the sum of its proper divisors (2515705728).

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

1021120320 is a wasteful number, since it uses less digits than its factorization.

1021120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96728 (or 96718 counting only the distinct ones).

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

The square root of 1021120320 is about 31954.9733218477. The cubic root of 1021120320 is about 1006.9911170504.

Adding to 1021120320 its reverse (230211201), we get a palindrome (1251331521).

The spelling of 1021120320 in words is "one billion, twenty-one million, one hundred twenty thousand, three hundred twenty".