129312201376267 has 96 divisors (see below), whose sum is σ = 172632057561600. Its totient is φ = 95733395638272.

The previous prime is 129312201376261. The next prime is 129312201376291. The reversal of 129312201376267 is 762673102213921.

It is a de Polignac number, because none of the positive numbers 2^k-129312201376267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129312201376261) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 472327963 + ... + 472601659.

It is an arithmetic number, because the mean of its divisors is an integer number (1798250599600).

Almost surely, 2^{129312201376267} is an apocalyptic number.

129312201376267 is a deficient number, since it is larger than the sum of its proper divisors (43319856185333).

129312201376267 is a wasteful number, since it uses less digits than its factorization.

129312201376267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274225 (or 274218 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 52.

The spelling of 129312201376267 in words is "one hundred twenty-nine trillion, three hundred twelve billion, two hundred one million, three hundred seventy-six thousand, two hundred sixty-seven".