675203626121 has 2 divisors, whose sum is σ = 675203626122. Its totient is φ = 675203626120.

The previous prime is 675203626049. The next prime is 675203626157. The reversal of 675203626121 is 121626302576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451569216121 + 223634410000 = 671989^2 + 472900^2 .

It is a cyclic number.

It is not a de Polignac number, because 675203626121 - 2²² = 675199431817 is a prime.

It is not a weakly prime, because it can be changed into another prime (675203626921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337601813060 + 337601813061.

It is an arithmetic number, because the mean of its divisors is an integer number (337601813061).

Almost surely, 2^675203626121 is an apocalyptic number.

It is an amenable number.

675203626121 is a deficient number, since it is larger than the sum of its proper divisors (1).

675203626121 is an equidigital number, since it uses as much as digits as its factorization.

675203626121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

Adding to 675203626121 its reverse (121626302576), we get a palindrome (796829928697).

The spelling of 675203626121 in words is "six hundred seventy-five billion, two hundred three million, six hundred twenty-six thousand, one hundred twenty-one".