20372271113 has 4 divisors (see below), whose sum is σ = 21570640020. Its totient is φ = 19173902208.

The previous prime is 20372271107. The next prime is 20372271149. The reversal of 20372271113 is 31117227302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16099295689 + 4272975424 = 126883^2 + 65368^2 .

It is a cyclic number.

It is not a de Polignac number, because 20372271113 - 2⁴ = 20372271097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20372271163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599184428 + ... + 599184461.

It is an arithmetic number, because the mean of its divisors is an integer number (5392660005).

Almost surely, 2^20372271113 is an apocalyptic number.

It is an amenable number.

20372271113 is a deficient number, since it is larger than the sum of its proper divisors (1198368907).

20372271113 is a wasteful number, since it uses less digits than its factorization.

20372271113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198368906.

The product of its (nonzero) digits is 3528, while the sum is 29.

Adding to 20372271113 its reverse (31117227302), we get a palindrome (51489498415).

The spelling of 20372271113 in words is "twenty billion, three hundred seventy-two million, two hundred seventy-one thousand, one hundred thirteen".