1131193907776 has 21 divisors (see below), whose sum is σ = 2244729795139. Its totient is φ = 565592699584.

The previous prime is 1131193907761. The next prime is 1131193907783. The reversal of 1131193907776 is 6777093911311.

It is a happy number.

The square root of 1131193907776 is 1063576.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8442135 + ... + 8575081.

Almost surely, 2^{1131193907776} is an apocalyptic number.

1131193907776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1131193907776 is the 1063576-th square number.

It is an amenable number.

1131193907776 is a deficient number, since it is larger than the sum of its proper divisors (1113535887363).

1131193907776 is an frugal number, since it uses more digits than its factorization.

1131193907776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265906 (or 132949 counting only the distinct ones).

The product of its (nonzero) digits is 1500282, while the sum is 55.

The spelling of 1131193907776 in words is "one trillion, one hundred thirty-one billion, one hundred ninety-three million, nine hundred seven thousand, seven hundred seventy-six".