20313313332 has 96 divisors (see below), whose sum is σ = 53811953664. Its totient is φ = 5919868800.

The previous prime is 20313313331. The next prime is 20313313333. The reversal of 20313313332 is 23331331302.

It is an interprime number because it is at equal distance from previous prime (20313313331) and next prime (20313313333).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313313331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182607 + ... + 271977.

It is an arithmetic number, because the mean of its divisors is an integer number (560541184).

Almost surely, 2^20313313332 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 20313313332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26905976832).

20313313332 is an abundant number, since it is smaller than the sum of its proper divisors (33498640332).

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

20313313332 is a wasteful number, since it uses less digits than its factorization.

20313313332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89469 (or 89467 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 20313313332 its reverse (23331331302), we get a palindrome (43644644634).

The spelling of 20313313332 in words is "twenty billion, three hundred thirteen million, three hundred thirteen thousand, three hundred thirty-two".