1131263868841 has 4 divisors (see below), whose sum is σ = 1131267532500. Its totient is φ = 1131260205184.

The previous prime is 1131263868829. The next prime is 1131263868863. The reversal of 1131263868841 is 1488683621311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 740295043216 + 390968825625 = 860404^2 + 625275^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131263868841 - 2²⁹ = 1130726997929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131263868811) 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, 1321216 + ... + 2002033.

It is an arithmetic number, because the mean of its divisors is an integer number (282816883125).

Almost surely, 2^{1131263868841} is an apocalyptic number.

It is an amenable number.

1131263868841 is a deficient number, since it is larger than the sum of its proper divisors (3663659).

1131263868841 is an equidigital number, since it uses as much as digits as its factorization.

1131263868841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663658.

The product of its digits is 1327104, while the sum is 52.

The spelling of 1131263868841 in words is "one trillion, one hundred thirty-one billion, two hundred sixty-three million, eight hundred sixty-eight thousand, eight hundred forty-one".