1123599991807 has 2 divisors, whose sum is σ = 1123599991808. Its totient is φ = 1123599991806.

The previous prime is 1123599991793. The next prime is 1123599991831. The reversal of 1123599991807 is 7081999953211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123599991807 - 2¹⁹ = 1123599467519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123599991307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561799995903 + 561799995904.

It is an arithmetic number, because the mean of its divisors is an integer number (561799995904).

Almost surely, 2^{1123599991807} is an apocalyptic number.

1123599991807 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123599991807 is an equidigital number, since it uses as much as digits as its factorization.

1123599991807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 64.

The spelling of 1123599991807 in words is "one trillion, one hundred twenty-three billion, five hundred ninety-nine million, nine hundred ninety-one thousand, eight hundred seven".