1111831089779 has 2 divisors, whose sum is σ = 1111831089780. Its totient is φ = 1111831089778.

The previous prime is 1111831089769. The next prime is 1111831089833. The reversal of 1111831089779 is 9779801381111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111831089779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111831089769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555915544889 + 555915544890.

It is an arithmetic number, because the mean of its divisors is an integer number (555915544890).

Almost surely, 2^{1111831089779} is an apocalyptic number.

1111831089779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111831089779 is an equidigital number, since it uses as much as digits as its factorization.

1111831089779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 56.

The spelling of 1111831089779 in words is "one trillion, one hundred eleven billion, eight hundred thirty-one million, eighty-nine thousand, seven hundred seventy-nine".