31611341 has 2 divisors, whose sum is σ = 31611342. Its totient is φ = 31611340.

The previous prime is 31611329. The next prime is 31611367. The reversal of 31611341 is 14311613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25210441 + 6400900 = 5021^2 + 2530^2 .

It is a cyclic number.

It is not a de Polignac number, because 31611341 - 2¹⁰ = 31610317 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31611301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15805670 + 15805671.

It is an arithmetic number, because the mean of its divisors is an integer number (15805671).

Almost surely, 2^31611341 is an apocalyptic number.

It is an amenable number.

31611341 is a deficient number, since it is larger than the sum of its proper divisors (1).

31611341 is an equidigital number, since it uses as much as digits as its factorization.

31611341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

The square root of 31611341 is about 5622.3963752123. The cubic root of 31611341 is about 316.1896427487.

Adding to 31611341 its reverse (14311613), we get a palindrome (45922954).

The spelling of 31611341 in words is "thirty-one million, six hundred eleven thousand, three hundred forty-one".