1123164736571 has 2 divisors, whose sum is σ = 1123164736572. Its totient is φ = 1123164736570.

The previous prime is 1123164736553. The next prime is 1123164736597. The reversal of 1123164736571 is 1756374613211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123164736571 is a prime.

It is a super-2 number, since 2×1123164736571² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123164736501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561582368285 + 561582368286.

It is an arithmetic number, because the mean of its divisors is an integer number (561582368286).

Almost surely, 2^{1123164736571} is an apocalyptic number.

1123164736571 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123164736571 is an equidigital number, since it uses as much as digits as its factorization.

1123164736571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 47.

The spelling of 1123164736571 in words is "one trillion, one hundred twenty-three billion, one hundred sixty-four million, seven hundred thirty-six thousand, five hundred seventy-one".