129378962023 has 8 divisors (see below), whose sum is σ = 132084270000. Its totient is φ = 126683439168.

The previous prime is 129378961973. The next prime is 129378962039. The reversal of 129378962023 is 320269873921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129378962023 - 2²⁵ = 129345407591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129378962093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2419558 + ... + 2472451.

It is an arithmetic number, because the mean of its divisors is an integer number (16510533750).

Almost surely, 2^129378962023 is an apocalyptic number.

129378962023 is a deficient number, since it is larger than the sum of its proper divisors (2705307977).

129378962023 is an equidigital number, since it uses as much as digits as its factorization.

129378962023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892561.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 129378962023 in words is "one hundred twenty-nine billion, three hundred seventy-eight million, nine hundred sixty-two thousand, twenty-three".