11112021003 has 8 divisors (see below), whose sum is σ = 14816520400. Its totient is φ = 7407767808.

The previous prime is 11112020951. The next prime is 11112021017. The reversal of 11112021003 is 30012021111.

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

It is not a de Polignac number, because 11112021003 - 2¹² = 11112016907 is a prime.

It is a super-2 number, since 2×11112021003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11112021003.

It is not an unprimeable number, because it can be changed into a prime (11112021103) 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, 121743 + ... + 192471.

It is an arithmetic number, because the mean of its divisors is an integer number (1852065050).

Almost surely, 2^11112021003 is an apocalyptic number.

11112021003 is a deficient number, since it is larger than the sum of its proper divisors (3704499397).

11112021003 is an equidigital number, since it uses as much as digits as its factorization.

11112021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123101.

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

Adding to 11112021003 its reverse (30012021111), we get a palindrome (41124042114).

The spelling of 11112021003 in words is "eleven billion, one hundred twelve million, twenty-one thousand, three".