10421128099 has 2 divisors, whose sum is σ = 10421128100. Its totient is φ = 10421128098.

The previous prime is 10421128097. The next prime is 10421128111. The reversal of 10421128099 is 99082112401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10421128099 - 2¹ = 10421128097 is a prime.

Together with 10421128097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10421128097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5210564049 + 5210564050.

It is an arithmetic number, because the mean of its divisors is an integer number (5210564050).

Almost surely, 2^10421128099 is an apocalyptic number.

10421128099 is a deficient number, since it is larger than the sum of its proper divisors (1).

10421128099 is an equidigital number, since it uses as much as digits as its factorization.

10421128099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 10421128099 in words is "ten billion, four hundred twenty-one million, one hundred twenty-eight thousand, ninety-nine".