123621041 has 2 divisors, whose sum is σ = 123621042. Its totient is φ = 123621040.

The previous prime is 123621037. The next prime is 123621061. The reversal of 123621041 is 140126321.

It is an a-pointer prime, because the next prime (123621061) can be obtained adding 123621041 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114597025 + 9024016 = 10705^2 + 3004^2 .

It is an emirp because it is prime and its reverse (140126321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123621041 - 2² = 123621037 is a prime.

It is not a weakly prime, because it can be changed into another prime (123621061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61810520 + 61810521.

It is an arithmetic number, because the mean of its divisors is an integer number (61810521).

Almost surely, 2^123621041 is an apocalyptic number.

It is an amenable number.

123621041 is a deficient number, since it is larger than the sum of its proper divisors (1).

123621041 is an equidigital number, since it uses as much as digits as its factorization.

123621041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 123621041 is about 11118.4999437874. The cubic root of 123621041 is about 498.1545852685.

Adding to 123621041 its reverse (140126321), we get a palindrome (263747362).

The spelling of 123621041 in words is "one hundred twenty-three million, six hundred twenty-one thousand, forty-one".