20313444900 has 216 divisors, whose sum is σ = 69197133600. Its totient is φ = 4586856960.

The previous prime is 20313444881. The next prime is 20313444913. The reversal of 20313444900 is 944431302.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1211776 + ... + 1228424.

It is an arithmetic number, because the mean of its divisors is an integer number (320357100).

Almost surely, 2^20313444900 is an apocalyptic number.

20313444900 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 20313444900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34598566800).

20313444900 is an abundant number, since it is smaller than the sum of its proper divisors (48883688700).

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

20313444900 is a wasteful number, since it uses less digits than its factorization.

20313444900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16763 (or 16749 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 20313444900 in words is "twenty billion, three hundred thirteen million, four hundred forty-four thousand, nine hundred".