123122005220449 has 2 divisors, whose sum is σ = 123122005220450. Its totient is φ = 123122005220448.

The previous prime is 123122005220339. The next prime is 123122005220479. The reversal of 123122005220449 is 944022500221321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111114789210000 + 12007216010449 = 10541100^2 + 3465143^2 .

It is an emirp because it is prime and its reverse (944022500221321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123122005220449 - 2¹³ = 123122005212257 is a prime.

It is not a weakly prime, because it can be changed into another prime (123122005220479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561002610224 + 61561002610225.

It is an arithmetic number, because the mean of its divisors is an integer number (61561002610225).

Almost surely, 2^{123122005220449} is an apocalyptic number.

It is an amenable number.

123122005220449 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122005220449 is an equidigital number, since it uses as much as digits as its factorization.

123122005220449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 123122005220449 in words is "one hundred twenty-three trillion, one hundred twenty-two billion, five million, two hundred twenty thousand, four hundred forty-nine".