1120623643 has 2 divisors, whose sum is σ = 1120623644. Its totient is φ = 1120623642.

The previous prime is 1120623617. The next prime is 1120623703. The reversal of 1120623643 is 3463260211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120623643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120623943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560311821 + 560311822.

It is an arithmetic number, because the mean of its divisors is an integer number (560311822).

Almost surely, 2^1120623643 is an apocalyptic number.

1120623643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120623643 is an equidigital number, since it uses as much as digits as its factorization.

1120623643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1120623643 is about 33475.7172141240. The cubic root of 1120623643 is about 1038.6915383308.

Adding to 1120623643 its reverse (3463260211), we get a palindrome (4583883854).

The spelling of 1120623643 in words is "one billion, one hundred twenty million, six hundred twenty-three thousand, six hundred forty-three".