1135966843931 has 4 divisors (see below), whose sum is σ = 1135990356432. Its totient is φ = 1135943331432.

The previous prime is 1135966843919. The next prime is 1135966843937. The reversal of 1135966843931 is 1393486695311.

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

It is a cyclic number.

It is not a de Polignac number, because 1135966843931 - 2¹⁸ = 1135966581787 is a prime.

It is a super-2 number, since 2×1135966843931² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135966843937) 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, 11683631 + ... + 11780456.

It is an arithmetic number, because the mean of its divisors is an integer number (283997589108).

Almost surely, 2^{1135966843931} is an apocalyptic number.

1135966843931 is a deficient number, since it is larger than the sum of its proper divisors (23512501).

1135966843931 is an equidigital number, since it uses as much as digits as its factorization.

1135966843931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23512500.

The product of its digits is 12597120, while the sum is 59.

The spelling of 1135966843931 in words is "one trillion, one hundred thirty-five billion, nine hundred sixty-six million, eight hundred forty-three thousand, nine hundred thirty-one".