20212340113 has 6 divisors (see below), whose sum is σ = 23512314066. Its totient is φ = 17324862912.

The previous prime is 20212340063. The next prime is 20212340167. The reversal of 20212340113 is 31104321202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13025200384 + 7187139729 = 114128^2 + 84777^2 .

It is not a de Polignac number, because 20212340113 - 2¹³ = 20212331921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212340413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206248320 + ... + 206248417.

It is an arithmetic number, because the mean of its divisors is an integer number (3918719011).

Almost surely, 2^20212340113 is an apocalyptic number.

It is an amenable number.

20212340113 is a deficient number, since it is larger than the sum of its proper divisors (3299973953).

20212340113 is an equidigital number, since it uses as much as digits as its factorization.

20212340113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412496751 (or 412496744 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20212340113 its reverse (31104321202), we get a palindrome (51316661315).

The spelling of 20212340113 in words is "twenty billion, two hundred twelve million, three hundred forty thousand, one hundred thirteen".