231356119 has 2 divisors, whose sum is σ = 231356120. Its totient is φ = 231356118.

The previous prime is 231356107. The next prime is 231356173. The reversal of 231356119 is 911653132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231356119 is a prime.

It is a super-2 number, since 2×231356119² = 107051307597484322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231351119) 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 as a sum of consecutive naturals, namely, 115678059 + 115678060.

It is an arithmetic number, because the mean of its divisors is an integer number (115678060).

Almost surely, 2^231356119 is an apocalyptic number.

231356119 is a deficient number, since it is larger than the sum of its proper divisors (1).

231356119 is an equidigital number, since it uses as much as digits as its factorization.

231356119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 31.

The square root of 231356119 is about 15210.3950967751. The cubic root of 231356119 is about 613.8943883187.

The spelling of 231356119 in words is "two hundred thirty-one million, three hundred fifty-six thousand, one hundred nineteen".