122719837013 has 2 divisors, whose sum is σ = 122719837014. Its totient is φ = 122719837012.

The previous prime is 122719836973. The next prime is 122719837043. The reversal of 122719837013 is 310738917221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109652375044 + 13067461969 = 331138^2 + 114313^2 .

It is a cyclic number.

It is not a de Polignac number, because 122719837013 - 2³⁰ = 121646095189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122719837043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61359918506 + 61359918507.

It is an arithmetic number, because the mean of its divisors is an integer number (61359918507).

Almost surely, 2^122719837013 is an apocalyptic number.

It is an amenable number.

122719837013 is a deficient number, since it is larger than the sum of its proper divisors (1).

122719837013 is an equidigital number, since it uses as much as digits as its factorization.

122719837013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 122719837013 in words is "one hundred twenty-two billion, seven hundred nineteen million, eight hundred thirty-seven thousand, thirteen".