1331611363 has 2 divisors, whose sum is σ = 1331611364. Its totient is φ = 1331611362.

The previous prime is 1331611349. The next prime is 1331611373. The reversal of 1331611363 is 3631161331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331611363 - 2⁵ = 1331611331 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331611373) 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, 665805681 + 665805682.

It is an arithmetic number, because the mean of its divisors is an integer number (665805682).

Almost surely, 2^1331611363 is an apocalyptic number.

1331611363 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331611363 is an equidigital number, since it uses as much as digits as its factorization.

1331611363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 28.

The square root of 1331611363 is about 36491.2504992635. The cubic root of 1331611363 is about 1100.1683937793.

Adding to 1331611363 its reverse (3631161331), we get a palindrome (4962772694).

The spelling of 1331611363 in words is "one billion, three hundred thirty-one million, six hundred eleven thousand, three hundred sixty-three".