20121303300 has 144 divisors (see below), whose sum is σ = 68680937472. Its totient is φ = 4450780800.

The previous prime is 20121303287. The next prime is 20121303337. The reversal of 20121303300 is 330312102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20121303300.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89442 + ... + 219641.

Almost surely, 2^20121303300 is an apocalyptic number.

20121303300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20121303300 is an abundant number, since it is smaller than the sum of its proper divisors (48559634172).

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

20121303300 is a wasteful number, since it uses less digits than its factorization.

20121303300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309138 (or 309131 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20121303300 its reverse (330312102), we get a palindrome (20451615402).

The spelling of 20121303300 in words is "twenty billion, one hundred twenty-one million, three hundred three thousand, three hundred".