20003100312 has 64 divisors (see below), whose sum is σ = 54658356480. Its totient is φ = 6062931072.

The previous prime is 20003100289. The next prime is 20003100317. The reversal of 20003100312 is 21300130002.

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 (20003100317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457548 + ... + 499355.

It is an arithmetic number, because the mean of its divisors is an integer number (854036820).

Almost surely, 2^20003100312 is an apocalyptic number.

It is an amenable number.

20003100312 is an abundant number, since it is smaller than the sum of its proper divisors (34655256168).

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

20003100312 is a wasteful number, since it uses less digits than its factorization.

20003100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956992 (or 956988 counting only the distinct ones).

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

Adding to 20003100312 its reverse (21300130002), we get a palindrome (41303230314).

The spelling of 20003100312 in words is "twenty billion, three million, one hundred thousand, three hundred twelve".