111131111002 has 8 divisors (see below), whose sum is σ = 166698889236. Its totient is φ = 55564814592.

The previous prime is 111131110997. The next prime is 111131111011. The reversal of 111131111002 is 200111131111.

It can be written as a sum of positive squares in 2 ways, for example, as 110137033161 + 994077841 = 331869^2 + 31529^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158773 + ... + 497464.

Almost surely, 2^111131111002 is an apocalyptic number.

111131111002 is a deficient number, since it is larger than the sum of its proper divisors (55567778234).

111131111002 is an equidigital number, since it uses as much as digits as its factorization.

111131111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740912.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 111131111002 its reverse (200111131111), we get a palindrome (311242242113).

The spelling of 111131111002 in words is "one hundred eleven billion, one hundred thirty-one million, one hundred eleven thousand, two".