20145430099 has 2 divisors, whose sum is σ = 20145430100. Its totient is φ = 20145430098.

The previous prime is 20145430093. The next prime is 20145430103. The reversal of 20145430099 is 99003454102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20145430099 - 2³ = 20145430091 is a prime.

It is not a weakly prime, because it can be changed into another prime (20145430091) 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, 10072715049 + 10072715050.

It is an arithmetic number, because the mean of its divisors is an integer number (10072715050).

Almost surely, 2^20145430099 is an apocalyptic number.

20145430099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20145430099 is an equidigital number, since it uses as much as digits as its factorization.

20145430099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 20145430099 in words is "twenty billion, one hundred forty-five million, four hundred thirty thousand, ninety-nine".