2121089688503 has 2 divisors, whose sum is σ = 2121089688504. Its totient is φ = 2121089688502.

The previous prime is 2121089688463. The next prime is 2121089688521. The reversal of 2121089688503 is 3058869801212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121089688503 - 2¹⁸ = 2121089426359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121089688583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060544844251 + 1060544844252.

It is an arithmetic number, because the mean of its divisors is an integer number (1060544844252).

Almost surely, 2^{2121089688503} is an apocalyptic number.

2121089688503 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121089688503 is an equidigital number, since it uses as much as digits as its factorization.

2121089688503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 2121089688503 in words is "two trillion, one hundred twenty-one billion, eighty-nine million, six hundred eighty-eight thousand, five hundred three".