123344537077 has 2 divisors, whose sum is σ = 123344537078. Its totient is φ = 123344537076.

The previous prime is 123344537039. The next prime is 123344537159. The reversal of 123344537077 is 770735443321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120016516356 + 3328020721 = 346434^2 + 57689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123344537077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123344537027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61672268538 + 61672268539.

It is an arithmetic number, because the mean of its divisors is an integer number (61672268539).

Almost surely, 2^123344537077 is an apocalyptic number.

It is an amenable number.

123344537077 is a deficient number, since it is larger than the sum of its proper divisors (1).

123344537077 is an equidigital number, since it uses as much as digits as its factorization.

123344537077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1481760, while the sum is 46.

The spelling of 123344537077 in words is "one hundred twenty-three billion, three hundred forty-four million, five hundred thirty-seven thousand, seventy-seven".