20031110010 has 96 divisors (see below), whose sum is σ = 53938939392. Its totient is φ = 5154266880.

The previous prime is 20031109961. The next prime is 20031110023. The reversal of 20031110010 is 1001113002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20031109974 and 20031110001.

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, 266982 + ... + 333678.

It is an arithmetic number, because the mean of its divisors is an integer number (561863952).

Almost surely, 2^20031110010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20031110010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26969469696).

20031110010 is an abundant number, since it is smaller than the sum of its proper divisors (33907829382).

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

20031110010 is a wasteful number, since it uses less digits than its factorization.

20031110010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66828 (or 66825 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 20031110010 its reverse (1001113002), we get a palindrome (21032223012).

The spelling of 20031110010 in words is "twenty billion, thirty-one million, one hundred ten thousand, ten".