2031113197 has 2 divisors, whose sum is σ = 2031113198. Its totient is φ = 2031113196.

The previous prime is 2031113191. The next prime is 2031113207. The reversal of 2031113197 is 7913111302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2009639241 + 21473956 = 44829^2 + 4634^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031113197 - 2⁷ = 2031113069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031113191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015556598 + 1015556599.

It is an arithmetic number, because the mean of its divisors is an integer number (1015556599).

Almost surely, 2^2031113197 is an apocalyptic number.

It is an amenable number.

2031113197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031113197 is an equidigital number, since it uses as much as digits as its factorization.

2031113197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 2031113197 is about 45067.8732247263. The cubic root of 2031113197 is about 1266.4208227019.

Adding to 2031113197 its reverse (7913111302), we get a palindrome (9944224499).

The spelling of 2031113197 in words is "two billion, thirty-one million, one hundred thirteen thousand, one hundred ninety-seven".