20313220110 has 32 divisors (see below), whose sum is σ = 48861809280. Its totient is φ = 5404627488.

The previous prime is 20313220099. The next prime is 20313220121. The reversal of 20313220110 is 1102231302.

It is an interprime number because it is at equal distance from previous prime (20313220099) and next prime (20313220121).

It is a super-2 number, since 2×20313220110² (a number of 21 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20313220110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 750940 + ... + 777519.

It is an arithmetic number, because the mean of its divisors is an integer number (1526931540).

Almost surely, 2^20313220110 is an apocalyptic number.

20313220110 is an abundant number, since it is smaller than the sum of its proper divisors (28548589170).

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

20313220110 is a wasteful number, since it uses less digits than its factorization.

20313220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528912.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20313220110 its reverse (1102231302), we get a palindrome (21415451412).

The spelling of 20313220110 in words is "twenty billion, three hundred thirteen million, two hundred twenty thousand, one hundred ten".