11112888890 has 8 divisors (see below), whose sum is σ = 20003200020. Its totient is φ = 4445155552.

The previous prime is 11112888851. The next prime is 11112888893. The reversal of 11112888890 is 9888821111.

It can be written as a sum of positive squares in 2 ways, for example, as 10864101361 + 248787529 = 104231^2 + 15773^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11112888893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555644435 + ... + 555644454.

Almost surely, 2^11112888890 is an apocalyptic number.

11112888890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11112888890 is a deficient number, since it is larger than the sum of its proper divisors (8890311130).

11112888890 is a wasteful number, since it uses less digits than its factorization.

11112888890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111288896.

The product of its (nonzero) digits is 73728, while the sum is 47.

The spelling of 11112888890 in words is "eleven billion, one hundred twelve million, eight hundred eighty-eight thousand, eight hundred ninety".