1031703161 has 2 divisors, whose sum is σ = 1031703162. Its totient is φ = 1031703160.

The previous prime is 1031703149. The next prime is 1031703163. The reversal of 1031703161 is 1613071301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721943161 + 309760000 = 26869^2 + 17600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031703161 is a prime.

It is a super-2 number, since 2×1031703161² = 2128822824834783842, which contains 22 as substring.

Together with 1031703163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1031703163) 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, 515851580 + 515851581.

It is an arithmetic number, because the mean of its divisors is an integer number (515851581).

Almost surely, 2^1031703161 is an apocalyptic number.

It is an amenable number.

1031703161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031703161 is an equidigital number, since it uses as much as digits as its factorization.

1031703161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 1031703161 is about 32120.1363789135. The cubic root of 1031703161 is about 1010.4579699384.

Adding to 1031703161 its reverse (1613071301), we get a palindrome (2644774462).

The spelling of 1031703161 in words is "one billion, thirty-one million, seven hundred three thousand, one hundred sixty-one".