11987090723 has 2 divisors, whose sum is σ = 11987090724. Its totient is φ = 11987090722.

The previous prime is 11987090699. The next prime is 11987090749. The reversal of 11987090723 is 32709078911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11987090723 - 2⁶ = 11987090659 is a prime.

It is not a weakly prime, because it can be changed into another prime (11987090783) 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, 5993545361 + 5993545362.

It is an arithmetic number, because the mean of its divisors is an integer number (5993545362).

Almost surely, 2^11987090723 is an apocalyptic number.

11987090723 is a deficient number, since it is larger than the sum of its proper divisors (1).

11987090723 is an equidigital number, since it uses as much as digits as its factorization.

11987090723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 11987090723 in words is "eleven billion, nine hundred eighty-seven million, ninety thousand, seven hundred twenty-three".