1117213678771 has 2 divisors, whose sum is σ = 1117213678772. Its totient is φ = 1117213678770.

The previous prime is 1117213678753. The next prime is 1117213678807. The reversal of 1117213678771 is 1778763127111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1117213678771 - 2⁷ = 1117213678643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1117213678171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558606839385 + 558606839386.

It is an arithmetic number, because the mean of its divisors is an integer number (558606839386).

Almost surely, 2^{1117213678771} is an apocalyptic number.

1117213678771 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117213678771 is an equidigital number, since it uses as much as digits as its factorization.

1117213678771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691488, while the sum is 52.

The spelling of 1117213678771 in words is "one trillion, one hundred seventeen billion, two hundred thirteen million, six hundred seventy-eight thousand, seven hundred seventy-one".