2630123236621 has 2 divisors, whose sum is σ = 2630123236622. Its totient is φ = 2630123236620.

The previous prime is 2630123236579. The next prime is 2630123236651. The reversal of 2630123236621 is 1266323210362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2546290404100 + 83832832521 = 1595710^2 + 289539^2 .

It is a cyclic number.

It is not a de Polignac number, because 2630123236621 - 2⁹ = 2630123236109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2630123236651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315061618310 + 1315061618311.

It is an arithmetic number, because the mean of its divisors is an integer number (1315061618311).

Almost surely, 2^{2630123236621} is an apocalyptic number.

It is an amenable number.

2630123236621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630123236621 is an equidigital number, since it uses as much as digits as its factorization.

2630123236621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

Adding to 2630123236621 its reverse (1266323210362), we get a palindrome (3896446446983).

The spelling of 2630123236621 in words is "two trillion, six hundred thirty billion, one hundred twenty-three million, two hundred thirty-six thousand, six hundred twenty-one".