56123542234349 has 2 divisors, whose sum is σ = 56123542234350. Its totient is φ = 56123542234348.

The previous prime is 56123542234307. The next prime is 56123542234351. The reversal of 56123542234349 is 94343224532165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54986941041124 + 1136601193225 = 7415318^2 + 1066115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56123542234349 is a prime.

It is a Sophie Germain prime.

Together with 56123542234351, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56123542234349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56123542234399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28061771117174 + 28061771117175.

It is an arithmetic number, because the mean of its divisors is an integer number (28061771117175).

Almost surely, 2^{56123542234349} is an apocalyptic number.

It is an amenable number.

56123542234349 is a deficient number, since it is larger than the sum of its proper divisors (1).

56123542234349 is an equidigital number, since it uses as much as digits as its factorization.

56123542234349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18662400, while the sum is 53.

The spelling of 56123542234349 in words is "fifty-six trillion, one hundred twenty-three billion, five hundred forty-two million, two hundred thirty-four thousand, three hundred forty-nine".