129231110 has 16 divisors (see below), whose sum is σ = 246299616. Its totient is φ = 48651648.

The previous prime is 129231079. The next prime is 129231131. The reversal of 129231110 is 11132921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379922 + ... + 380261.

It is an arithmetic number, because the mean of its divisors is an integer number (15393726).

Almost surely, 2^129231110 is an apocalyptic number.

129231110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129231110 is a deficient number, since it is larger than the sum of its proper divisors (117068506).

129231110 is a wasteful number, since it uses less digits than its factorization.

129231110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760207.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 129231110 is about 11367.9861892949. The cubic root of 129231110 is about 505.5789980319.

The spelling of 129231110 in words is "one hundred twenty-nine million, two hundred thirty-one thousand, one hundred ten".