20315124423304 has 32 divisors (see below), whose sum is σ = 38152735836480. Its totient is φ = 10141064011584.

The previous prime is 20315124423301. The next prime is 20315124423311. The reversal of 20315124423304 is 40332442151302.

It is a self number, because there is not a number n which added to its sum of digits gives 20315124423304.

It is not an unprimeable number, because it can be changed into a prime (20315124423301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68522074 + ... + 68817910.

It is an arithmetic number, because the mean of its divisors is an integer number (1192272994890).

Almost surely, 2^{20315124423304} is an apocalyptic number.

It is an amenable number.

20315124423304 is a deficient number, since it is larger than the sum of its proper divisors (17837611413176).

20315124423304 is a wasteful number, since it uses less digits than its factorization.

20315124423304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309757 (or 309753 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 20315124423304 its reverse (40332442151302), we get a palindrome (60647566574606).

The spelling of 20315124423304 in words is "twenty trillion, three hundred fifteen billion, one hundred twenty-four million, four hundred twenty-three thousand, three hundred four".