129211257038297 has 12 divisors (see below), whose sum is σ = 153802483463376. Its totient is φ = 108176866355880.

The previous prime is 129211257038261. The next prime is 129211257038309. The reversal of 129211257038297 is 792830752112921.

It is not a de Polignac number, because 129211257038297 - 2⁶ = 129211257038233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129211257038497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30662374979 + ... + 30662379192.

It is an arithmetic number, because the mean of its divisors is an integer number (12816873621948).

Almost surely, 2^{129211257038297} is an apocalyptic number.

It is an amenable number.

129211257038297 is a deficient number, since it is larger than the sum of its proper divisors (24591226425079).

129211257038297 is an equidigital number, since it uses as much as digits as its factorization.

129211257038297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61324754228 (or 61324754221 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 59.

The spelling of 129211257038297 in words is "one hundred twenty-nine trillion, two hundred eleven billion, two hundred fifty-seven million, thirty-eight thousand, two hundred ninety-seven".