231429099 has 32 divisors (see below), whose sum is σ = 342752256. Its totient is φ = 137733120.

The previous prime is 231429089. The next prime is 231429119. The reversal of 231429099 is 990924132.

It is not a de Polignac number, because 231429099 - 2⁴ = 231429083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231429089) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 630414 + ... + 630780.

It is an arithmetic number, because the mean of its divisors is an integer number (10711008).

Almost surely, 2^231429099 is an apocalyptic number.

231429099 is a deficient number, since it is larger than the sum of its proper divisors (111323157).

231429099 is a wasteful number, since it uses less digits than its factorization.

231429099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 231429099 is about 15212.7939248515. The cubic root of 231429099 is about 613.9589313886.

It can be divided in two parts, 2314 and 29099, that added together give a palindrome (31413).

The spelling of 231429099 in words is "two hundred thirty-one million, four hundred twenty-nine thousand, ninety-nine".