20310344352 has 144 divisors (see below), whose sum is σ = 60620283360. Its totient is φ = 6688334592.

The previous prime is 20310344347. The next prime is 20310344357. The reversal of 20310344352 is 25344301302.

20310344352 is a `hidden beast` number, since 2 + 0 + 310 + 344 + 3 + 5 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (20310344347) and next prime (20310344357).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20310344357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 629674 + ... + 661142.

It is an arithmetic number, because the mean of its divisors is an integer number (420974190).

Almost surely, 2^20310344352 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 20310344352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30310141680).

20310344352 is an abundant number, since it is smaller than the sum of its proper divisors (40309939008).

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

20310344352 is an equidigital number, since it uses as much as digits as its factorization.

20310344352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31577 (or 31557 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 20310344352 its reverse (25344301302), we get a palindrome (45654645654).

The spelling of 20310344352 in words is "twenty billion, three hundred ten million, three hundred forty-four thousand, three hundred fifty-two".