11111211003 has 8 divisors (see below), whose sum is σ = 15325808400. Its totient is φ = 7152043808.

The previous prime is 11111210983. The next prime is 11111211031. The reversal of 11111211003 is 30011211111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111211003 - 2⁹ = 11111210491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11111211003.

It is not an unprimeable number, because it can be changed into a prime (11111211073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63857448 + ... + 63857621.

It is an arithmetic number, because the mean of its divisors is an integer number (1915726050).

Almost surely, 2^11111211003 is an apocalyptic number.

11111211003 is a deficient number, since it is larger than the sum of its proper divisors (4214597397).

11111211003 is a wasteful number, since it uses less digits than its factorization.

11111211003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127715101.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11111211003 its reverse (30011211111), we get a palindrome (41122422114).

The spelling of 11111211003 in words is "eleven billion, one hundred eleven million, two hundred eleven thousand, three".