1631102113 has 2 divisors, whose sum is σ = 1631102114. Its totient is φ = 1631102112.

The previous prime is 1631102093. The next prime is 1631102149. The reversal of 1631102113 is 3112011361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1384360849 + 246741264 = 37207^2 + 15708^2 .

It is an emirp because it is prime and its reverse (3112011361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1631102113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1631102153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815551056 + 815551057.

It is an arithmetic number, because the mean of its divisors is an integer number (815551057).

Almost surely, 2^1631102113 is an apocalyptic number.

It is an amenable number.

1631102113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1631102113 is an equidigital number, since it uses as much as digits as its factorization.

1631102113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1631102113 is about 40386.9052169141. The cubic root of 1631102113 is about 1177.1371066899.

Adding to 1631102113 its reverse (3112011361), we get a palindrome (4743113474).

The spelling of 1631102113 in words is "one billion, six hundred thirty-one million, one hundred two thousand, one hundred thirteen".