1012020300 has 108 divisors (see below), whose sum is σ = 3257961616. Its totient is φ = 262569600.

The previous prime is 1012020293. The next prime is 1012020341. The reversal of 1012020300 is 30202101.

It is a happy number.

It is a super-2 number, since 2×1012020300² = 2048370175224180000, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18105 + ... + 48495.

Almost surely, 2^1012020300 is an apocalyptic number.

1012020300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012020300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1628980808).

1012020300 is an abundant number, since it is smaller than the sum of its proper divisors (2245941316).

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

1012020300 is a wasteful number, since it uses less digits than its factorization.

1012020300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30448 (or 30438 counting only the distinct ones).

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

The square root of 1012020300 is about 31812.2665020900. The cubic root of 1012020300 is about 1003.9908188448.

Adding to 1012020300 its reverse (30202101), we get a palindrome (1042222401).

The spelling of 1012020300 in words is "one billion, twelve million, twenty thousand, three hundred".