20203331329 has 2 divisors, whose sum is σ = 20203331330. Its totient is φ = 20203331328.

The previous prime is 20203331279. The next prime is 20203331363. The reversal of 20203331329 is 92313330202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19691666929 + 511664400 = 140327^2 + 22620^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203331329 - 2²³ = 20194942721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20203331297 and 20203331306.

It is not a weakly prime, because it can be changed into another prime (20203335329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101665664 + 10101665665.

It is an arithmetic number, because the mean of its divisors is an integer number (10101665665).

Almost surely, 2^20203331329 is an apocalyptic number.

It is an amenable number.

20203331329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203331329 is an equidigital number, since it uses as much as digits as its factorization.

20203331329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

The spelling of 20203331329 in words is "twenty billion, two hundred three million, three hundred thirty-one thousand, three hundred twenty-nine".