203299991929 has 2 divisors, whose sum is σ = 203299991930. Its totient is φ = 203299991928.

The previous prime is 203299991911. The next prime is 203299991977. The reversal of 203299991929 is 929199992302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192346276329 + 10953715600 = 438573^2 + 104660^2 .

It is a cyclic number.

It is not a de Polignac number, because 203299991929 - 2⁵ = 203299991897 is a prime.

It is not a weakly prime, because it can be changed into another prime (203299991029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101649995964 + 101649995965.

It is an arithmetic number, because the mean of its divisors is an integer number (101649995965).

Almost surely, 2^203299991929 is an apocalyptic number.

It is an amenable number.

203299991929 is a deficient number, since it is larger than the sum of its proper divisors (1).

203299991929 is an equidigital number, since it uses as much as digits as its factorization.

203299991929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12754584, while the sum is 64.

The spelling of 203299991929 in words is "two hundred three billion, two hundred ninety-nine million, nine hundred ninety-one thousand, nine hundred twenty-nine".