129214246361 has 2 divisors, whose sum is σ = 129214246362. Its totient is φ = 129214246360.

The previous prime is 129214246351. The next prime is 129214246363. The reversal of 129214246361 is 163642412921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127909230736 + 1305015625 = 357644^2 + 36125^2 .

It is a cyclic number.

It is not a de Polignac number, because 129214246361 - 2²² = 129210052057 is a prime.

Together with 129214246363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129214246363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64607123180 + 64607123181.

It is an arithmetic number, because the mean of its divisors is an integer number (64607123181).

Almost surely, 2^129214246361 is an apocalyptic number.

It is an amenable number.

129214246361 is a deficient number, since it is larger than the sum of its proper divisors (1).

129214246361 is an equidigital number, since it uses as much as digits as its factorization.

129214246361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The spelling of 129214246361 in words is "one hundred twenty-nine billion, two hundred fourteen million, two hundred forty-six thousand, three hundred sixty-one".