321103451005003 has 2 divisors, whose sum is σ = 321103451005004. Its totient is φ = 321103451005002.

The previous prime is 321103451004983. The next prime is 321103451005049. The reversal of 321103451005003 is 300500154301123.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321103451005003 - 2⁹ = 321103451004491 is a prime.

It is not a weakly prime, because it can be changed into another prime (321103451006003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160551725502501 + 160551725502502.

It is an arithmetic number, because the mean of its divisors is an integer number (160551725502502).

Almost surely, 2^{321103451005003} is an apocalyptic number.

321103451005003 is a deficient number, since it is larger than the sum of its proper divisors (1).

321103451005003 is an equidigital number, since it uses as much as digits as its factorization.

321103451005003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 321103451005003 in words is "three hundred twenty-one trillion, one hundred three billion, four hundred fifty-one million, five thousand, three".