230120111231 has 2 divisors, whose sum is σ = 230120111232. Its totient is φ = 230120111230.

The previous prime is 230120111209. The next prime is 230120111237. The reversal of 230120111231 is 132111021032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230120111231 - 2⁶ = 230120111167 is a prime.

It is a super-2 number, since 2×230120111231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230120111237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115060055615 + 115060055616.

It is an arithmetic number, because the mean of its divisors is an integer number (115060055616).

Almost surely, 2^230120111231 is an apocalyptic number.

230120111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

230120111231 is an equidigital number, since it uses as much as digits as its factorization.

230120111231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 230120111231 its reverse (132111021032), we get a palindrome (362231132263).

The spelling of 230120111231 in words is "two hundred thirty billion, one hundred twenty million, one hundred eleven thousand, two hundred thirty-one".