231879223 has 2 divisors, whose sum is σ = 231879224. Its totient is φ = 231879222.

The previous prime is 231879199. The next prime is 231879227. The reversal of 231879223 is 322978132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231879223 - 2²¹ = 229782071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231879227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115939611 + 115939612.

It is an arithmetic number, because the mean of its divisors is an integer number (115939612).

Almost surely, 2^231879223 is an apocalyptic number.

231879223 is a deficient number, since it is larger than the sum of its proper divisors (1).

231879223 is an equidigital number, since it uses as much as digits as its factorization.

231879223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 231879223 is about 15227.5809963369. The cubic root of 231879223 is about 614.3567186950.

The spelling of 231879223 in words is "two hundred thirty-one million, eight hundred seventy-nine thousand, two hundred twenty-three".