20213103300 has 144 divisors (see below), whose sum is σ = 63443356032. Its totient is φ = 4939084800.

The previous prime is 20213103257. The next prime is 20213103307. The reversal of 20213103300 is 330131202.

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 20213103300.

It is not an unprimeable number, because it can be changed into a prime (20213103307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 515385 + ... + 553215.

Almost surely, 2^20213103300 is an apocalyptic number.

20213103300 is a gapful number since it is divisible by the number (20) 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 20213103300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31721678016).

20213103300 is an abundant number, since it is smaller than the sum of its proper divisors (43230252732).

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

20213103300 is a wasteful number, since it uses less digits than its factorization.

20213103300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37998 (or 37991 counting only the distinct ones).

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

Adding to 20213103300 its reverse (330131202), we get a palindrome (20543234502).

The spelling of 20213103300 in words is "twenty billion, two hundred thirteen million, one hundred three thousand, three hundred".