20001203113 has 4 divisors (see below), whose sum is σ = 20001903300. Its totient is φ = 20000502928.

The previous prime is 20001203099. The next prime is 20001203147. The reversal of 20001203113 is 31130210002.

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 11193005209 + 8808197904 = 105797^2 + 93852^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001203113 - 2¹⁷ = 20001072041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20001203093 and 20001203102.

It is not an unprimeable number, because it can be changed into a prime (20001209113) 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, 305338 + ... + 365011.

It is an arithmetic number, because the mean of its divisors is an integer number (5000475825).

Almost surely, 2^20001203113 is an apocalyptic number.

It is an amenable number.

20001203113 is a deficient number, since it is larger than the sum of its proper divisors (700187).

20001203113 is an equidigital number, since it uses as much as digits as its factorization.

20001203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700186.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20001203113 its reverse (31130210002), we get a palindrome (51131413115).

The spelling of 20001203113 in words is "twenty billion, one million, two hundred three thousand, one hundred thirteen".