111312002 has 4 divisors (see below), whose sum is σ = 166968006. Its totient is φ = 55656000.

The previous prime is 111311987. The next prime is 111312023. The reversal of 111312002 is 200213111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66569281 + 44742721 = 8159^2 + 6689^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27827999 + ... + 27828002.

Almost surely, 2^111312002 is an apocalyptic number.

111312002 is a deficient number, since it is larger than the sum of its proper divisors (55656004).

111312002 is an equidigital number, since it uses as much as digits as its factorization.

111312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55656003.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 111312002 is about 10550.4503221427. The cubic root of 111312002 is about 481.0394171273.

Adding to 111312002 its reverse (200213111), we get a palindrome (311525113).

The spelling of 111312002 in words is "one hundred eleven million, three hundred twelve thousand, two".