231223141111 has 2 divisors, whose sum is σ = 231223141112. Its totient is φ = 231223141110.

The previous prime is 231223141099. The next prime is 231223141129. The reversal of 231223141111 is 111141322132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231223141111 - 2¹³ = 231223132919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231223111111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115611570555 + 115611570556.

It is an arithmetic number, because the mean of its divisors is an integer number (115611570556).

Almost surely, 2^231223141111 is an apocalyptic number.

231223141111 is a deficient number, since it is larger than the sum of its proper divisors (1).

231223141111 is an equidigital number, since it uses as much as digits as its factorization.

231223141111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 22.

Adding to 231223141111 its reverse (111141322132), we get a palindrome (342364463243).

The spelling of 231223141111 in words is "two hundred thirty-one billion, two hundred twenty-three million, one hundred forty-one thousand, one hundred eleven".