123554262455297 has 2 divisors, whose sum is σ = 123554262455298. Its totient is φ = 123554262455296.

The previous prime is 123554262455291. The next prime is 123554262455401. The reversal of 123554262455297 is 792554262455321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62968525843441 + 60585736611856 = 7935271^2 + 7783684^2 .

It is an emirp because it is prime and its reverse (792554262455321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123554262455297 is a prime.

It is not a weakly prime, because it can be changed into another prime (123554262455291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61777131227648 + 61777131227649.

It is an arithmetic number, because the mean of its divisors is an integer number (61777131227649).

Almost surely, 2^{123554262455297} is an apocalyptic number.

It is an amenable number.

123554262455297 is a deficient number, since it is larger than the sum of its proper divisors (1).

123554262455297 is an equidigital number, since it uses as much as digits as its factorization.

123554262455297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440000, while the sum is 62.

The spelling of 123554262455297 in words is "one hundred twenty-three trillion, five hundred fifty-four billion, two hundred sixty-two million, four hundred fifty-five thousand, two hundred ninety-seven".