20300312 has 32 divisors (see below), whose sum is σ = 40979520. Its totient is φ = 9392640.

The previous prime is 20300299. The next prime is 20300317. The reversal of 20300312 is 21300302.

It is a junction number, because it is equal to n+sod(n) for n = 20300293 and 20300302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300317) 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, 7073 + ... + 9519.

It is an arithmetic number, because the mean of its divisors is an integer number (1280610).

Almost surely, 2^20300312 is an apocalyptic number.

It is an amenable number.

20300312 is an abundant number, since it is smaller than the sum of its proper divisors (20679208).

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

20300312 is a wasteful number, since it uses less digits than its factorization.

20300312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531 (or 2527 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20300312 is about 4505.5867542419. The cubic root of 20300312 is about 272.7936379639.

Adding to 20300312 its reverse (21300302), we get a palindrome (41600614).

The spelling of 20300312 in words is "twenty million, three hundred thousand, three hundred twelve".