129099350603 has 4 divisors (see below), whose sum is σ = 129364442160. Its totient is φ = 128834259048.

The previous prime is 129099350591. The next prime is 129099350651. The reversal of 129099350603 is 306053990921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129099350603 - 2³⁰ = 128025608779 is a prime.

It is a super-2 number, since 2×129099350603² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129099350203) 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, 132545048 + ... + 132546021.

It is an arithmetic number, because the mean of its divisors is an integer number (32341110540).

Almost surely, 2^129099350603 is an apocalyptic number.

129099350603 is a deficient number, since it is larger than the sum of its proper divisors (265091557).

129099350603 is an equidigital number, since it uses as much as digits as its factorization.

129099350603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265091556.

The product of its (nonzero) digits is 393660, while the sum is 47.

The spelling of 129099350603 in words is "one hundred twenty-nine billion, ninety-nine million, three hundred fifty thousand, six hundred three".