129983355101 has 2 divisors, whose sum is σ = 129983355102. Its totient is φ = 129983355100.

The previous prime is 129983355041. The next prime is 129983355109. The reversal of 129983355101 is 101553389921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75344760100 + 54638595001 = 274490^2 + 233749^2 .

It is a cyclic number.

It is not a de Polignac number, because 129983355101 - 2³⁴ = 112803485917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129983355109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64991677550 + 64991677551.

It is an arithmetic number, because the mean of its divisors is an integer number (64991677551).

Almost surely, 2^129983355101 is an apocalyptic number.

It is an amenable number.

129983355101 is a deficient number, since it is larger than the sum of its proper divisors (1).

129983355101 is an equidigital number, since it uses as much as digits as its factorization.

129983355101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 47.

The spelling of 129983355101 in words is "one hundred twenty-nine billion, nine hundred eighty-three million, three hundred fifty-five thousand, one hundred one".