129493280103 has 16 divisors (see below), whose sum is σ = 190020715776. Its totient is φ = 77786253440.

The previous prime is 129493280089. The next prime is 129493280149. The reversal of 129493280103 is 301082394921.

It is a cyclic number.

It is not a de Polignac number, because 129493280103 - 2⁴ = 129493280087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129493280503) 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, 17359275 + ... + 17366732.

It is an arithmetic number, because the mean of its divisors is an integer number (11876294736).

Almost surely, 2^129493280103 is an apocalyptic number.

129493280103 is a deficient number, since it is larger than the sum of its proper divisors (60527435673).

129493280103 is a wasteful number, since it uses less digits than its factorization.

129493280103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34726134.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 129493280103 in words is "one hundred twenty-nine billion, four hundred ninety-three million, two hundred eighty thousand, one hundred three".