20003513010 has 64 divisors (see below), whose sum is σ = 51764590080. Its totient is φ = 4917922560.

The previous prime is 20003512981. The next prime is 20003513059. The reversal of 20003513010 is 1031530002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292375 + ... + 354245.

It is an arithmetic number, because the mean of its divisors is an integer number (808821720).

Almost surely, 2^20003513010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20003513010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25882295040).

20003513010 is an abundant number, since it is smaller than the sum of its proper divisors (31761077070).

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

20003513010 is a wasteful number, since it uses less digits than its factorization.

20003513010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62723.

The product of its (nonzero) digits is 90, while the sum is 15.

The spelling of 20003513010 in words is "twenty billion, three million, five hundred thirteen thousand, ten".