129191362143 has 8 divisors (see below), whose sum is σ = 172511103408. Its totient is φ = 85999597824.

The previous prime is 129191362141. The next prime is 129191362217. The reversal of 129191362143 is 341263191921.

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

It is not a de Polignac number, because 129191362143 - 2¹ = 129191362141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129191362095 and 129191362104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129191362141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31991880 + ... + 31995917.

It is an arithmetic number, because the mean of its divisors is an integer number (21563887926).

Almost surely, 2^129191362143 is an apocalyptic number.

129191362143 is a deficient number, since it is larger than the sum of its proper divisors (43319741265).

129191362143 is an equidigital number, since it uses as much as digits as its factorization.

129191362143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63988473.

The product of its digits is 69984, while the sum is 42.

The spelling of 129191362143 in words is "one hundred twenty-nine billion, one hundred ninety-one million, three hundred sixty-two thousand, one hundred forty-three".