129135322231 has 8 divisors (see below), whose sum is σ = 129233286000. Its totient is φ = 129037399680.

The previous prime is 129135322229. The next prime is 129135322367. The reversal of 129135322231 is 132223531921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129135322231 - 2¹ = 129135322229 is a prime.

It is a super-2 number, since 2×129135322231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129135320231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8930095 + ... + 8944543.

It is an arithmetic number, because the mean of its divisors is an integer number (16154160750).

Almost surely, 2^129135322231 is an apocalyptic number.

129135322231 is a deficient number, since it is larger than the sum of its proper divisors (97963769).

129135322231 is a wasteful number, since it uses less digits than its factorization.

129135322231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20609.

The product of its digits is 19440, while the sum is 34.

The spelling of 129135322231 in words is "one hundred twenty-nine billion, one hundred thirty-five million, three hundred twenty-two thousand, two hundred thirty-one".