129102126076 has 48 divisors (see below), whose sum is σ = 281737935360. Its totient is φ = 50288713920.

The previous prime is 129102126073. The next prime is 129102126107. The reversal of 129102126076 is 670621201921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129102126073) 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, 1472446 + ... + 1557658.

It is an arithmetic number, because the mean of its divisors is an integer number (5869540320).

Almost surely, 2^129102126076 is an apocalyptic number.

It is an amenable number.

129102126076 is an abundant number, since it is smaller than the sum of its proper divisors (152635809284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129102126076 is a wasteful number, since it uses less digits than its factorization.

129102126076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90154 (or 90152 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

Adding to 129102126076 its reverse (670621201921), we get a palindrome (799723327997).

The spelling of 129102126076 in words is "one hundred twenty-nine billion, one hundred two million, one hundred twenty-six thousand, seventy-six".