231202097 has 4 divisors (see below), whose sum is σ = 264230976. Its totient is φ = 198173220.

The previous prime is 231202093. The next prime is 231202121. The reversal of 231202097 is 790202132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 231202097 - 2² = 231202093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231202093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16514429 + ... + 16514442.

It is an arithmetic number, because the mean of its divisors is an integer number (66057744).

Almost surely, 2^231202097 is an apocalyptic number.

It is an amenable number.

231202097 is a deficient number, since it is larger than the sum of its proper divisors (33028879).

231202097 is an equidigital number, since it uses as much as digits as its factorization.

231202097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33028878.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 231202097 is about 15205.3312032326. The cubic root of 231202097 is about 613.7581276309.

The spelling of 231202097 in words is "two hundred thirty-one million, two hundred two thousand, ninety-seven".