99421033603 has 2 divisors, whose sum is σ = 99421033604. Its totient is φ = 99421033602.

The previous prime is 99421033597. The next prime is 99421033661. The reversal of 99421033603 is 30633012499.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99421033603 - 2⁹ = 99421033091 is a prime.

It is not a weakly prime, because it can be changed into another prime (99421033403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49710516801 + 49710516802.

It is an arithmetic number, because the mean of its divisors is an integer number (49710516802).

Almost surely, 2^99421033603 is an apocalyptic number.

99421033603 is a deficient number, since it is larger than the sum of its proper divisors (1).

99421033603 is an equidigital number, since it uses as much as digits as its factorization.

99421033603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 40.

The spelling of 99421033603 in words is "ninety-nine billion, four hundred twenty-one million, thirty-three thousand, six hundred three".