111389002 has 4 divisors (see below), whose sum is σ = 167083506. Its totient is φ = 55694500.

The previous prime is 111388957. The next prime is 111389009. The reversal of 111389002 is 200983111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200983111 = 7 ⋅28711873.

It can be written as a sum of positive squares in only one way, i.e., 78659161 + 32729841 = 8869^2 + 5721^2 .

It is not an unprimeable number, because it can be changed into a prime (111389009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27847249 + ... + 27847252.

Almost surely, 2^111389002 is an apocalyptic number.

111389002 is a deficient number, since it is larger than the sum of its proper divisors (55694504).

111389002 is an equidigital number, since it uses as much as digits as its factorization.

111389002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55694503.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 111389002 is about 10554.0988246273. The cubic root of 111389002 is about 481.1503111217.

The spelling of 111389002 in words is "one hundred eleven million, three hundred eighty-nine thousand, two".