111111111002 has 16 divisors (see below), whose sum is σ = 176480482752. Its totient is φ = 52284649920.

The previous prime is 111111110947. The next prime is 111111111017. The reversal of 111111111002 is 200111111111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599177 + ... + 762387.

It is an arithmetic number, because the mean of its divisors is an integer number (11030030172).

Almost surely, 2^111111111002 is an apocalyptic number.

111111111002 is a deficient number, since it is larger than the sum of its proper divisors (65369371750).

111111111002 is a wasteful number, since it uses less digits than its factorization.

111111111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183253.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 111111111002 its reverse (200111111111), we get a palindrome (311222222113).

The spelling of 111111111002 in words is "one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, two".