3561366331 has 2 divisors, whose sum is σ = 3561366332. Its totient is φ = 3561366330.

The previous prime is 3561366223. The next prime is 3561366337. The reversal of 3561366331 is 1336631653.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3561366331 - 2¹¹ = 3561364283 is a prime.

It is a super-2 number, since 2×3561366331² = 25366660287160803122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3561366337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780683165 + 1780683166.

It is an arithmetic number, because the mean of its divisors is an integer number (1780683166).

Almost surely, 2^3561366331 is an apocalyptic number.

3561366331 is a deficient number, since it is larger than the sum of its proper divisors (1).

3561366331 is an equidigital number, since it uses as much as digits as its factorization.

3561366331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 37.

The square root of 3561366331 is about 59677.1843420917. The cubic root of 3561366331 is about 1527.1166638789.

Adding to 3561366331 its reverse (1336631653), we get a palindrome (4897997984).

The spelling of 3561366331 in words is "three billion, five hundred sixty-one million, three hundred sixty-six thousand, three hundred thirty-one".