111211013003 has 4 divisors (see below), whose sum is σ = 112022772360. Its totient is φ = 110399253648.

The previous prime is 111211012999. The next prime is 111211013029. The reversal of 111211013003 is 300310112111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300310112111 = 350789 ⋅856099.

It is a cyclic number.

It is not a de Polignac number, because 111211013003 - 2² = 111211012999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111211013093) 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 in 3 ways as a sum of consecutive naturals, for example, 405879473 + ... + 405879746.

It is an arithmetic number, because the mean of its divisors is an integer number (28005693090).

Almost surely, 2^111211013003 is an apocalyptic number.

111211013003 is a deficient number, since it is larger than the sum of its proper divisors (811759357).

111211013003 is an equidigital number, since it uses as much as digits as its factorization.

111211013003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811759356.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 111211013003 its reverse (300310112111), we get a palindrome (411521125114).

The spelling of 111211013003 in words is "one hundred eleven billion, two hundred eleven million, thirteen thousand, three".