20201001113 has 4 divisors (see below), whose sum is σ = 20210098788. Its totient is φ = 20191903440.

The previous prime is 20201001109. The next prime is 20201001137. The reversal of 20201001113 is 31110010202.

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 10219592464 + 9981408649 = 101092^2 + 99907^2 .

It is a cyclic number.

It is not a de Polignac number, because 20201001113 - 2² = 20201001109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20201001094 and 20201001103.

It is not an unprimeable number, because it can be changed into a prime (20201001103) 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, 4545506 + ... + 4549947.

It is an arithmetic number, because the mean of its divisors is an integer number (5052524697).

Almost surely, 2^20201001113 is an apocalyptic number.

It is an amenable number.

20201001113 is a deficient number, since it is larger than the sum of its proper divisors (9097675).

20201001113 is an equidigital number, since it uses as much as digits as its factorization.

20201001113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097674.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20201001113 its reverse (31110010202), we get a palindrome (51311011315).

The spelling of 20201001113 in words is "twenty billion, two hundred one million, one thousand, one hundred thirteen".