129950430340 has 12 divisors (see below), whose sum is σ = 272895903756. Its totient is φ = 51980172128.

The previous prime is 129950430329. The next prime is 129950430343. The reversal of 129950430340 is 43034059921.

It can be written as a sum of positive squares in 2 ways, for example, as 102053413764 + 27897016576 = 319458^2 + 167024^2 .

It is a super-2 number, since 2×129950430340² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129950430293 and 129950430302.

It is not an unprimeable number, because it can be changed into a prime (129950430343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3248760739 + ... + 3248760778.

It is an arithmetic number, because the mean of its divisors is an integer number (22741325313).

Almost surely, 2^129950430340 is an apocalyptic number.

129950430340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129950430340 is an abundant number, since it is smaller than the sum of its proper divisors (142945473416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129950430340 is a wasteful number, since it uses less digits than its factorization.

129950430340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6497521526 (or 6497521524 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 129950430340 in words is "one hundred twenty-nine billion, nine hundred fifty million, four hundred thirty thousand, three hundred forty".