1020300312 has 32 divisors (see below), whose sum is σ = 2570230080. Its totient is φ = 337502880.

The previous prime is 1020300311. The next prime is 1020300329. The reversal of 1020300312 is 2130030201.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020300311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159118 + ... + 165405.

It is an arithmetic number, because the mean of its divisors is an integer number (80319690).

Almost surely, 2^1020300312 is an apocalyptic number.

1020300312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020300312 is an abundant number, since it is smaller than the sum of its proper divisors (1549929768).

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

1020300312 is a wasteful number, since it uses less digits than its factorization.

1020300312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324663 (or 324659 counting only the distinct ones).

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

The square root of 1020300312 is about 31942.1400660632. The cubic root of 1020300312 is about 1006.7214910032.

Adding to 1020300312 its reverse (2130030201), we get a palindrome (3150330513).

The spelling of 1020300312 in words is "one billion, twenty million, three hundred thousand, three hundred twelve".