123010041221 has 2 divisors, whose sum is σ = 123010041222. Its totient is φ = 123010041220.

The previous prime is 123010041197. The next prime is 123010041239. The reversal of 123010041221 is 122140010321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78282444100 + 44727597121 = 279790^2 + 211489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123010041221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123010041221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123010041251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505020610 + 61505020611.

It is an arithmetic number, because the mean of its divisors is an integer number (61505020611).

Almost surely, 2^123010041221 is an apocalyptic number.

It is an amenable number.

123010041221 is a deficient number, since it is larger than the sum of its proper divisors (1).

123010041221 is an equidigital number, since it uses as much as digits as its factorization.

123010041221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 123010041221 its reverse (122140010321), we get a palindrome (245150051542).

The spelling of 123010041221 in words is "one hundred twenty-three billion, ten million, forty-one thousand, two hundred twenty-one".