129630032961 has 32 divisors (see below), whose sum is σ = 208009468800. Its totient is φ = 70751500800.

The previous prime is 129630032953. The next prime is 129630033107. The reversal of 129630032961 is 169230036921.

It is a happy number.

It is not a de Polignac number, because 129630032961 - 2³ = 129630032953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129630032941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3667386 + ... + 3702563.

It is an arithmetic number, because the mean of its divisors is an integer number (6500295900).

Almost surely, 2^129630032961 is an apocalyptic number.

129630032961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

129630032961 is a deficient number, since it is larger than the sum of its proper divisors (78379435839).

129630032961 is a wasteful number, since it uses less digits than its factorization.

129630032961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370017.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 129630032961 in words is "one hundred twenty-nine billion, six hundred thirty million, thirty-two thousand, nine hundred sixty-one".