123031220041 has 2 divisors, whose sum is σ = 123031220042. Its totient is φ = 123031220040.

The previous prime is 123031220003. The next prime is 123031220057. The reversal of 123031220041 is 140022130321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77072864400 + 45958355641 = 277620^2 + 214379^2 .

It is an emirp because it is prime and its reverse (140022130321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123031220041 - 2¹⁵ = 123031187273 is a prime.

It is a super-2 number, since 2×123031220041² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123031220441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515610020 + 61515610021.

It is an arithmetic number, because the mean of its divisors is an integer number (61515610021).

Almost surely, 2^123031220041 is an apocalyptic number.

It is an amenable number.

123031220041 is a deficient number, since it is larger than the sum of its proper divisors (1).

123031220041 is an equidigital number, since it uses as much as digits as its factorization.

123031220041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123031220041 its reverse (140022130321), we get a palindrome (263053350362).

The spelling of 123031220041 in words is "one hundred twenty-three billion, thirty-one million, two hundred twenty thousand, forty-one".