20310015000 has 160 divisors (see below), whose sum is σ = 69217093440. Its totient is φ = 4923600000.

The previous prime is 20310014941. The next prime is 20310015071. The reversal of 20310015000 is 51001302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 103455 + ... + 226545.

It is an arithmetic number, because the mean of its divisors is an integer number (432606834).

Almost surely, 2^20310015000 is an apocalyptic number.

20310015000 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 20310015000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34608546720).

20310015000 is an abundant number, since it is smaller than the sum of its proper divisors (48907078440).

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

20310015000 is a wasteful number, since it uses less digits than its factorization.

20310015000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123131 (or 123112 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

Adding to 20310015000 its reverse (51001302), we get a palindrome (20361016302).

The spelling of 20310015000 in words is "twenty billion, three hundred ten million, fifteen thousand".