20313210112 has 72 divisors (see below), whose sum is σ = 43763707904. Its totient is φ = 9354369024.

The previous prime is 20313210103. The next prime is 20313210119. The reversal of 20313210112 is 21101231302.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313210119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1534273 + ... + 1547455.

Almost surely, 2^20313210112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20313210112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21881853952).

20313210112 is an abundant number, since it is smaller than the sum of its proper divisors (23450497792).

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

20313210112 is a wasteful number, since it uses less digits than its factorization.

20313210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13675 (or 13661 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20313210112 its reverse (21101231302), we get a palindrome (41414441414).

The spelling of 20313210112 in words is "twenty billion, three hundred thirteen million, two hundred ten thousand, one hundred twelve".