20325122113 has 4 divisors (see below), whose sum is σ = 20360843460. Its totient is φ = 20289400768.

The previous prime is 20325122107. The next prime is 20325122119. The reversal of 20325122113 is 31122152302.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20325122107) and next prime (20325122119).

It can be written as a sum of positive squares in 2 ways, for example, as 8569575184 + 11755546929 = 92572^2 + 108423^2 .

It is a cyclic number.

It is not a de Polignac number, because 20325122113 - 2²¹ = 20323024961 is a prime.

It is a super-2 number, since 2×20325122113² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20325122119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17859820 + ... + 17860957.

It is an arithmetic number, because the mean of its divisors is an integer number (5090210865).

Almost surely, 2^20325122113 is an apocalyptic number.

It is an amenable number.

20325122113 is a deficient number, since it is larger than the sum of its proper divisors (35721347).

20325122113 is an equidigital number, since it uses as much as digits as its factorization.

20325122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35721346.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20325122113 its reverse (31122152302), we get a palindrome (51447274415).

The spelling of 20325122113 in words is "twenty billion, three hundred twenty-five million, one hundred twenty-two thousand, one hundred thirteen".