130020129 has 12 divisors (see below), whose sum is σ = 190990800. Its totient is φ = 85210584.

The previous prime is 130020103. The next prime is 130020151. The reversal of 130020129 is 921020031.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-130020129 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130020929) 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, 121899 + ... + 122960.

It is an arithmetic number, because the mean of its divisors is an integer number (15915900).

Almost surely, 2^130020129 is an apocalyptic number.

It is an amenable number.

130020129 is a deficient number, since it is larger than the sum of its proper divisors (60970671).

130020129 is a wasteful number, since it uses less digits than its factorization.

130020129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244924 (or 244921 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 130020129 is about 11402.6369318680. The cubic root of 130020129 is about 506.6058465680.

The spelling of 130020129 in words is "one hundred thirty million, twenty thousand, one hundred twenty-nine".