2231201113 has 2 divisors, whose sum is σ = 2231201114. Its totient is φ = 2231201112.

The previous prime is 2231201083. The next prime is 2231201117. The reversal of 2231201113 is 3111021322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2018974489 + 212226624 = 44933^2 + 14568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2231201113 is a prime.

It is a super-3 number, since 3×2231201113³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2231201117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115600556 + 1115600557.

It is an arithmetic number, because the mean of its divisors is an integer number (1115600557).

Almost surely, 2^2231201113 is an apocalyptic number.

It is an amenable number.

2231201113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231201113 is an equidigital number, since it uses as much as digits as its factorization.

2231201113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2231201113 is about 47235.5915915107. The cubic root of 2231201113 is about 1306.7110769981.

Adding to 2231201113 its reverse (3111021322), we get a palindrome (5342222435).

The spelling of 2231201113 in words is "two billion, two hundred thirty-one million, two hundred one thousand, one hundred thirteen".