20302213121300 has 216 divisors, whose sum is σ = 51237879940800. Its totient is φ = 6957809971200.

The previous prime is 20302213121231. The next prime is 20302213121321. The reversal of 20302213121300 is 312131220302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 44141921 + ... + 44599479.

Almost surely, 2^{20302213121300} is an apocalyptic number.

20302213121300 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 20302213121300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25618939970400).

20302213121300 is an abundant number, since it is smaller than the sum of its proper divisors (30935666819500).

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

20302213121300 is a wasteful number, since it uses less digits than its factorization.

20302213121300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457807 (or 457789 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20302213121300 its reverse (312131220302), we get a palindrome (20614344341602).

The spelling of 20302213121300 in words is "twenty trillion, three hundred two billion, two hundred thirteen million, one hundred twenty-one thousand, three hundred".