231221031123041 has 2 divisors, whose sum is σ = 231221031123042. Its totient is φ = 231221031123040.

The previous prime is 231221031122969. The next prime is 231221031123067. The reversal of 231221031123041 is 140321130122132.

231221031123041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (231221031123067) can be obtained adding 231221031123041 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131394156127441 + 99826874995600 = 11462729^2 + 9991340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231221031123041 is a prime.

It is a super-3 number, since 3×231221031123041³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231221031123041.

It is not a weakly prime, because it can be changed into another prime (231221031123241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115610515561520 + 115610515561521.

It is an arithmetic number, because the mean of its divisors is an integer number (115610515561521).

Almost surely, 2^{231221031123041} is an apocalyptic number.

It is an amenable number.

231221031123041 is a deficient number, since it is larger than the sum of its proper divisors (1).

231221031123041 is an equidigital number, since it uses as much as digits as its factorization.

231221031123041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 231221031123041 its reverse (140321130122132), we get a palindrome (371542161245173).

The spelling of 231221031123041 in words is "two hundred thirty-one trillion, two hundred twenty-one billion, thirty-one million, one hundred twenty-three thousand, forty-one".