129110312 has 16 divisors (see below), whose sum is σ = 247986900. Its totient is φ = 62980480.

The previous prime is 129110299. The next prime is 129110321. The reversal of 129110312 is 213011921.

It can be written as a sum of positive squares in 2 ways, for example, as 90744676 + 38365636 = 9526^2 + 6194^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196487 + ... + 197142.

Almost surely, 2^129110312 is an apocalyptic number.

It is an amenable number.

129110312 is a deficient number, since it is larger than the sum of its proper divisors (118876588).

129110312 is a wasteful number, since it uses less digits than its factorization.

129110312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393676 (or 393672 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 129110312 is about 11362.6718688872. The cubic root of 129110312 is about 505.4214199511.

The spelling of 129110312 in words is "one hundred twenty-nine million, one hundred ten thousand, three hundred twelve".