231013351 has 2 divisors, whose sum is σ = 231013352. Its totient is φ = 231013350.

The previous prime is 231013327. The next prime is 231013417. The reversal of 231013351 is 153310132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231013351 - 2⁹ = 231012839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231013451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115506675 + 115506676.

It is an arithmetic number, because the mean of its divisors is an integer number (115506676).

Almost surely, 2^231013351 is an apocalyptic number.

231013351 is a deficient number, since it is larger than the sum of its proper divisors (1).

231013351 is an equidigital number, since it uses as much as digits as its factorization.

231013351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 231013351 is about 15199.1233628785. The cubic root of 231013351 is about 613.5910646569.

Adding to 231013351 its reverse (153310132), we get a palindrome (384323483).

The spelling of 231013351 in words is "two hundred thirty-one million, thirteen thousand, three hundred fifty-one".