11199142276 has 27 divisors (see below), whose sum is σ = 22801270359. Its totient is φ = 4798997448.

The previous prime is 11199142261. The next prime is 11199142301. The reversal of 11199142276 is 67224199111.

The square root of 11199142276 is 105826.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1477785 + ... + 1485343.

Almost surely, 2^11199142276 is an apocalyptic number.

11199142276 is the 105826-th square number.

It is an amenable number.

11199142276 is an abundant number, since it is smaller than the sum of its proper divisors (11602128083).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11199142276 is an frugal number, since it uses more digits than its factorization.

11199142276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15136 (or 7568 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The spelling of 11199142276 in words is "eleven billion, one hundred ninety-nine million, one hundred forty-two thousand, two hundred seventy-six".