123011605411571 has 2 divisors, whose sum is σ = 123011605411572. Its totient is φ = 123011605411570.

The previous prime is 123011605411549. The next prime is 123011605411603. The reversal of 123011605411571 is 175114506110321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123011605411571 is a prime.

It is not a weakly prime, because it can be changed into another prime (123011605411501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505802705785 + 61505802705786.

It is an arithmetic number, because the mean of its divisors is an integer number (61505802705786).

Almost surely, 2^{123011605411571} is an apocalyptic number.

123011605411571 is a deficient number, since it is larger than the sum of its proper divisors (1).

123011605411571 is an equidigital number, since it uses as much as digits as its factorization.

123011605411571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 38.

The spelling of 123011605411571 in words is "one hundred twenty-three trillion, eleven billion, six hundred five million, four hundred eleven thousand, five hundred seventy-one".