111020003 has 2 divisors, whose sum is σ = 111020004. Its totient is φ = 111020002.

The previous prime is 111019999. The next prime is 111020029. The reversal of 111020003 is 300020111.

It is a weak prime.

It is an emirp because it is prime and its reverse (300020111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111020003 - 2² = 111019999 is a prime.

It is a super-2 number, since 2×111020003² = 24650882132240018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111020603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510001 + 55510002.

It is an arithmetic number, because the mean of its divisors is an integer number (55510002).

Almost surely, 2^111020003 is an apocalyptic number.

111020003 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020003 is an equidigital number, since it uses as much as digits as its factorization.

111020003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 111020003 is about 10536.6030104584. The cubic root of 111020003 is about 480.6184202037.

Adding to 111020003 its reverse (300020111), we get a palindrome (411040114).

The spelling of 111020003 in words is "one hundred eleven million, twenty thousand, three".