20331245315 has 8 divisors (see below), whose sum is σ = 24399836448. Its totient is φ = 16263434880.

The previous prime is 20331245309. The next prime is 20331245323. The reversal of 20331245315 is 51354213302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20331245315 - 2¹⁸ = 20330983171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136262 + ... + 243371.

It is an arithmetic number, because the mean of its divisors is an integer number (3049979556).

Almost surely, 2^20331245315 is an apocalyptic number.

20331245315 is a deficient number, since it is larger than the sum of its proper divisors (4068591133).

20331245315 is a wasteful number, since it uses less digits than its factorization.

20331245315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390349.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 20331245315 its reverse (51354213302), we get a palindrome (71685458617).

The spelling of 20331245315 in words is "twenty billion, three hundred thirty-one million, two hundred forty-five thousand, three hundred fifteen".