231426099 has 32 divisors (see below), whose sum is σ = 369734400. Its totient is φ = 142585920.

The previous prime is 231426071. The next prime is 231426101. The reversal of 231426099 is 990624132.

231426099 is a `hidden beast` number, since 2 + 3 + 1 + 42 + 609 + 9 = 666.

231426099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-231426099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231426059) 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, 15532 + ... + 26534.

It is an arithmetic number, because the mean of its divisors is an integer number (11554200).

Almost surely, 2^231426099 is an apocalyptic number.

231426099 is a deficient number, since it is larger than the sum of its proper divisors (138308301).

231426099 is a wasteful number, since it uses less digits than its factorization.

231426099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11072 (or 11066 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 231426099 is about 15212.6953233147. The cubic root of 231426099 is about 613.9562784742.

It can be divided in two parts, 23142 and 6099, that added together give a square (29241 = 171²).

The spelling of 231426099 in words is "two hundred thirty-one million, four hundred twenty-six thousand, ninety-nine".