122838961129 has 2 divisors, whose sum is σ = 122838961130. Its totient is φ = 122838961128.

The previous prime is 122838961117. The next prime is 122838961187. The reversal of 122838961129 is 921169838221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114939306729 + 7899654400 = 339027^2 + 88880^2 .

It is a cyclic number.

It is not a de Polignac number, because 122838961129 - 2¹¹ = 122838959081 is a prime.

It is not a weakly prime, because it can be changed into another prime (122838941129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61419480564 + 61419480565.

It is an arithmetic number, because the mean of its divisors is an integer number (61419480565).

Almost surely, 2^122838961129 is an apocalyptic number.

It is an amenable number.

122838961129 is a deficient number, since it is larger than the sum of its proper divisors (1).

122838961129 is an equidigital number, since it uses as much as digits as its factorization.

122838961129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 52.

It can be divided in two parts, 12283896 and 1129, that added together give a square (12285025 = 3505²).

The spelling of 122838961129 in words is "one hundred twenty-two billion, eight hundred thirty-eight million, nine hundred sixty-one thousand, one hundred twenty-nine".