255234231111 has 4 divisors (see below), whose sum is σ = 340312308152. Its totient is φ = 170156154072.

The previous prime is 255234231073. The next prime is 255234231121. The reversal of 255234231111 is 111132432552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 255234231111 - 2⁶ = 255234231047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255234231121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42539038516 + ... + 42539038521.

It is an arithmetic number, because the mean of its divisors is an integer number (85078077038).

Almost surely, 2^255234231111 is an apocalyptic number.

255234231111 is a deficient number, since it is larger than the sum of its proper divisors (85078077041).

255234231111 is an equidigital number, since it uses as much as digits as its factorization.

255234231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85078077040.

The product of its digits is 7200, while the sum is 30.

Adding to 255234231111 its reverse (111132432552), we get a palindrome (366366663663).

The spelling of 255234231111 in words is "two hundred fifty-five billion, two hundred thirty-four million, two hundred thirty-one thousand, one hundred eleven".