11988905003 has 2 divisors, whose sum is σ = 11988905004. Its totient is φ = 11988905002.

The previous prime is 11988904999. The next prime is 11988905021. The reversal of 11988905003 is 30050988911.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30050988911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11988905003 - 2² = 11988904999 is a prime.

It is not a weakly prime, because it can be changed into another prime (11988905303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5994452501 + 5994452502.

It is an arithmetic number, because the mean of its divisors is an integer number (5994452502).

Almost surely, 2^11988905003 is an apocalyptic number.

11988905003 is a deficient number, since it is larger than the sum of its proper divisors (1).

11988905003 is an equidigital number, since it uses as much as digits as its factorization.

11988905003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 44.

The spelling of 11988905003 in words is "eleven billion, nine hundred eighty-eight million, nine hundred five thousand, three".