129530489271 has 16 divisors (see below), whose sum is σ = 173200844544. Its totient is φ = 86107230144.

The previous prime is 129530489261. The next prime is 129530489281. The reversal of 129530489271 is 172984035921.

It is an interprime number because it is at equal distance from previous prime (129530489261) and next prime (129530489281).

It is not a de Polignac number, because 129530489271 - 2¹⁹ = 129529964983 is a prime.

It is a super-2 number, since 2×129530489271² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129530489261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1541670 + ... + 1623516.

It is an arithmetic number, because the mean of its divisors is an integer number (10825052784).

Almost surely, 2^129530489271 is an apocalyptic number.

129530489271 is a deficient number, since it is larger than the sum of its proper divisors (43670355273).

129530489271 is an equidigital number, since it uses as much as digits as its factorization.

129530489271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83350.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 129530489271 in words is "one hundred twenty-nine billion, five hundred thirty million, four hundred eighty-nine thousand, two hundred seventy-one".