231110221241 has 2 divisors, whose sum is σ = 231110221242. Its totient is φ = 231110221240.

The previous prime is 231110221189. The next prime is 231110221253. The reversal of 231110221241 is 142122011132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117964771600 + 113145449641 = 343460^2 + 336371^2 .

It is a cyclic number.

It is not a de Polignac number, because 231110221241 - 2¹⁸ = 231109959097 is a prime.

It is not a weakly prime, because it can be changed into another prime (231110221291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115555110620 + 115555110621.

It is an arithmetic number, because the mean of its divisors is an integer number (115555110621).

Almost surely, 2^231110221241 is an apocalyptic number.

It is an amenable number.

231110221241 is a deficient number, since it is larger than the sum of its proper divisors (1).

231110221241 is an equidigital number, since it uses as much as digits as its factorization.

231110221241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 231110221241 its reverse (142122011132), we get a palindrome (373232232373).

The spelling of 231110221241 in words is "two hundred thirty-one billion, one hundred ten million, two hundred twenty-one thousand, two hundred forty-one".