1320111383 has 2 divisors, whose sum is σ = 1320111384. Its totient is φ = 1320111382.

The previous prime is 1320111379. The next prime is 1320111413. The reversal of 1320111383 is 3831110231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320111383 - 2² = 1320111379 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320111343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660055691 + 660055692.

It is an arithmetic number, because the mean of its divisors is an integer number (660055692).

Almost surely, 2^1320111383 is an apocalyptic number.

1320111383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320111383 is an equidigital number, since it uses as much as digits as its factorization.

1320111383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1320111383 is about 36333.3370749234. The cubic root of 1320111383 is about 1096.9921638717.

The spelling of 1320111383 in words is "one billion, three hundred twenty million, one hundred eleven thousand, three hundred eighty-three".