1020320120 has 16 divisors (see below), whose sum is σ = 2295720360. Its totient is φ = 408128032.

The previous prime is 1020320117. The next prime is 1020320131. The reversal of 1020320120 is 210230201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12753962 + ... + 12754041.

Almost surely, 2^1020320120 is an apocalyptic number.

1020320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020320120 is an abundant number, since it is smaller than the sum of its proper divisors (1275400240).

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

1020320120 is a wasteful number, since it uses less digits than its factorization.

1020320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25508014 (or 25508010 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1020320120 is about 31942.4501251861. The cubic root of 1020320120 is about 1006.7280057551.

Adding to 1020320120 its reverse (210230201), we get a palindrome (1230550321).

The spelling of 1020320120 in words is "one billion, twenty million, three hundred twenty thousand, one hundred twenty".