129119311 has 2 divisors, whose sum is σ = 129119312. Its totient is φ = 129119310.

The previous prime is 129119303. The next prime is 129119321. The reversal of 129119311 is 113911921.

It is a weak prime.

It is an emirp because it is prime and its reverse (113911921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129119311 - 2³ = 129119303 is a prime.

It is a super-2 number, since 2×129119311² = 33343592946229442, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129119311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129119321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64559655 + 64559656.

It is an arithmetic number, because the mean of its divisors is an integer number (64559656).

Almost surely, 2^129119311 is an apocalyptic number.

129119311 is a deficient number, since it is larger than the sum of its proper divisors (1).

129119311 is an equidigital number, since it uses as much as digits as its factorization.

129119311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 28.

The square root of 129119311 is about 11363.0678515971. The cubic root of 129119311 is about 505.4331623173.

It can be divided in two parts, 12911 and 9311, that added together give a palindrome (22222).

The spelling of 129119311 in words is "one hundred twenty-nine million, one hundred nineteen thousand, three hundred eleven".