1012320300 has 72 divisors (see below), whose sum is σ = 2947773136. Its totient is φ = 268220160.

The previous prime is 1012320251. The next prime is 1012320311. The reversal of 1012320300 is 30232101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36354 + ... + 57846.

Almost surely, 2^1012320300 is an apocalyptic number.

1012320300 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 1012320300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473886568).

1012320300 is an abundant number, since it is smaller than the sum of its proper divisors (1935452836).

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

1012320300 is a wasteful number, since it uses less digits than its factorization.

1012320300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21667 (or 21660 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1012320300 is about 31816.9813150148. The cubic root of 1012320300 is about 1004.0900156326.

Adding to 1012320300 its reverse (30232101), we get a palindrome (1042552401).

The spelling of 1012320300 in words is "one billion, twelve million, three hundred twenty thousand, three hundred".