20315252329 has 2 divisors, whose sum is σ = 20315252330. Its totient is φ = 20315252328.

The previous prime is 20315252323. The next prime is 20315252429. The reversal of 20315252329 is 92325251302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15965586025 + 4349666304 = 126355^2 + 65952^2 .

It is a cyclic number.

It is not a de Polignac number, because 20315252329 - 2⁷ = 20315252201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20315252294 and 20315252303.

It is not a weakly prime, because it can be changed into another prime (20315252323) 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, 10157626164 + 10157626165.

It is an arithmetic number, because the mean of its divisors is an integer number (10157626165).

Almost surely, 2^20315252329 is an apocalyptic number.

It is an amenable number.

20315252329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20315252329 is an equidigital number, since it uses as much as digits as its factorization.

20315252329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 20315252329 in words is "twenty billion, three hundred fifteen million, two hundred fifty-two thousand, three hundred twenty-nine".