111233330231 has 2 divisors, whose sum is σ = 111233330232. Its totient is φ = 111233330230.

The previous prime is 111233330209. The next prime is 111233330249. The reversal of 111233330231 is 132033332111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111233330231 - 2¹⁸ = 111233068087 is a prime.

It is a super-2 number, since 2×111233330231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 111233330197 and 111233330206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111233330531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55616665115 + 55616665116.

It is an arithmetic number, because the mean of its divisors is an integer number (55616665116).

Almost surely, 2^111233330231 is an apocalyptic number.

111233330231 is a deficient number, since it is larger than the sum of its proper divisors (1).

111233330231 is an equidigital number, since it uses as much as digits as its factorization.

111233330231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 111233330231 its reverse (132033332111), we get a palindrome (243266662342).

The spelling of 111233330231 in words is "one hundred eleven billion, two hundred thirty-three million, three hundred thirty thousand, two hundred thirty-one".