2121209168003 has 2 divisors, whose sum is σ = 2121209168004. Its totient is φ = 2121209168002.

The previous prime is 2121209167997. The next prime is 2121209168059. The reversal of 2121209168003 is 3008619021212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121209168003 - 2⁶ = 2121209167939 is a prime.

It is a super-3 number, since 3×2121209168003³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2121209168803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060604584001 + 1060604584002.

It is an arithmetic number, because the mean of its divisors is an integer number (1060604584002).

Almost surely, 2^{2121209168003} is an apocalyptic number.

2121209168003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121209168003 is an equidigital number, since it uses as much as digits as its factorization.

2121209168003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 2121209168003 in words is "two trillion, one hundred twenty-one billion, two hundred nine million, one hundred sixty-eight thousand, three".