11303311985 has 32 divisors (see below), whose sum is σ = 16433528832. Its totient is φ = 7286031360.

The previous prime is 11303311969. The next prime is 11303311993. The reversal of 11303311985 is 58911330311.

It is not a de Polignac number, because 11303311985 - 2⁴ = 11303311969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496400 + ... + 518670.

It is an arithmetic number, because the mean of its divisors is an integer number (513547776).

Almost surely, 2^11303311985 is an apocalyptic number.

It is an amenable number.

11303311985 is a deficient number, since it is larger than the sum of its proper divisors (5130216847).

11303311985 is a wasteful number, since it uses less digits than its factorization.

11303311985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23153.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 11303311985 in words is "eleven billion, three hundred three million, three hundred eleven thousand, nine hundred eighty-five".