1020120300 has 54 divisors (see below), whose sum is σ = 3197513228. Its totient is φ = 272031840.

The previous prime is 1020120287. The next prime is 1020120307. The reversal of 1020120300 is 30210201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1020120307) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 565834 + ... + 567633.

Almost surely, 2^1020120300 is an apocalyptic number.

1020120300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020120300 is an abundant number, since it is smaller than the sum of its proper divisors (2177392928).

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

1020120300 is a wasteful number, since it uses less digits than its factorization.

1020120300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133487 (or 1133477 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1020120300 is about 31939.3221593696. The cubic root of 1020120300 is about 1006.6622820933.

Adding to 1020120300 its reverse (30210201), we get a palindrome (1050330501).

The spelling of 1020120300 in words is "one billion, twenty million, one hundred twenty thousand, three hundred".