231348511 has 2 divisors, whose sum is σ = 231348512. Its totient is φ = 231348510.

The previous prime is 231348497. The next prime is 231348517. The reversal of 231348511 is 115843132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231348511 - 2⁹ = 231347999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231348511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231348517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115674255 + 115674256.

It is an arithmetic number, because the mean of its divisors is an integer number (115674256).

Almost surely, 2^231348511 is an apocalyptic number.

231348511 is a deficient number, since it is larger than the sum of its proper divisors (1).

231348511 is an equidigital number, since it uses as much as digits as its factorization.

231348511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 231348511 is about 15210.1450025961. The cubic root of 231348511 is about 613.8876590684.

The spelling of 231348511 in words is "two hundred thirty-one million, three hundred forty-eight thousand, five hundred eleven".