1031102161 has 2 divisors, whose sum is σ = 1031102162. Its totient is φ = 1031102160.

The previous prime is 1031102131. The next prime is 1031102239. The reversal of 1031102161 is 1612011301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 895146561 + 135955600 = 29919^2 + 11660^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031102161 - 2⁹ = 1031101649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1031102131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515551080 + 515551081.

It is an arithmetic number, because the mean of its divisors is an integer number (515551081).

Almost surely, 2^1031102161 is an apocalyptic number.

It is an amenable number.

1031102161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031102161 is an equidigital number, since it uses as much as digits as its factorization.

1031102161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1031102161 is about 32110.7795140510. The cubic root of 1031102161 is about 1010.2617238274.

Adding to 1031102161 its reverse (1612011301), we get a palindrome (2643113462).

The spelling of 1031102161 in words is "one billion, thirty-one million, one hundred two thousand, one hundred sixty-one".