121021102313003 has 2 divisors, whose sum is σ = 121021102313004. Its totient is φ = 121021102313002.

The previous prime is 121021102312997. The next prime is 121021102313011. The reversal of 121021102313003 is 300313201120121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121021102313003 - 2¹⁸ = 121021102050859 is a prime.

It is a super-2 number, since 2×121021102313003² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121021102313803) 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, 60510551156501 + 60510551156502.

It is an arithmetic number, because the mean of its divisors is an integer number (60510551156502).

Almost surely, 2^{121021102313003} is an apocalyptic number.

121021102313003 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021102313003 is an equidigital number, since it uses as much as digits as its factorization.

121021102313003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121021102313003 its reverse (300313201120121), we get a palindrome (421334303433124).

The spelling of 121021102313003 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred two million, three hundred thirteen thousand, three".