20315051321300 has 144 divisors (see below), whose sum is σ = 46981904715648. Its totient is φ = 7598080819200.

The previous prime is 20315051321281. The next prime is 20315051321311. The reversal of 20315051321300 is 312315051302.

It is a self number, because there is not a number n which added to its sum of digits gives 20315051321300.

It is a congruent number.

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, 548192372 + ... + 548229428.

It is an arithmetic number, because the mean of its divisors is an integer number (326263227192).

Almost surely, 2^{20315051321300} is an apocalyptic number.

20315051321300 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 20315051321300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23490952357824).

20315051321300 is an abundant number, since it is smaller than the sum of its proper divisors (26666853394348).

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

20315051321300 is a wasteful number, since it uses less digits than its factorization.

20315051321300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39186 (or 39179 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 20315051321300 its reverse (312315051302), we get a palindrome (20627366372602).

The spelling of 20315051321300 in words is "twenty trillion, three hundred fifteen billion, fifty-one million, three hundred twenty-one thousand, three hundred".