10203605562121 has 2 divisors, whose sum is σ = 10203605562122. Its totient is φ = 10203605562120.

The previous prime is 10203605562061. The next prime is 10203605562233. The reversal of 10203605562121 is 12126550630201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9667870862400 + 535734699721 = 3109320^2 + 731939^2 .

It is a cyclic number.

It is not a de Polignac number, because 10203605562121 - 2²¹ = 10203603464969 is a prime.

It is a super-2 number, since 2×10203605562121² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10203605532121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5101802781060 + 5101802781061.

It is an arithmetic number, because the mean of its divisors is an integer number (5101802781061).

Almost surely, 2^{10203605562121} is an apocalyptic number.

It is an amenable number.

10203605562121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10203605562121 is an equidigital number, since it uses as much as digits as its factorization.

10203605562121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 10203605562121 in words is "ten trillion, two hundred three billion, six hundred five million, five hundred sixty-two thousand, one hundred twenty-one".