20342321324 has 24 divisors (see below), whose sum is σ = 39659435760. Its totient is φ = 9065012544.

The previous prime is 20342321317. The next prime is 20342321327. The reversal of 20342321324 is 42312324302.

It is a super-2 number, since 2×20342321324² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 20342321293 and 20342321302.

It is not an unprimeable number, because it can be changed into a prime (20342321327) by changing a digit.

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, 6743294 + ... + 6746309.

It is an arithmetic number, because the mean of its divisors is an integer number (1652476490).

Almost surely, 2^20342321324 is an apocalyptic number.

It is an amenable number.

20342321324 is a deficient number, since it is larger than the sum of its proper divisors (19317114436).

20342321324 is a wasteful number, since it uses less digits than its factorization.

20342321324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13489649 (or 13489647 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20342321324 its reverse (42312324302), we get a palindrome (62654645626).

The spelling of 20342321324 in words is "twenty billion, three hundred forty-two million, three hundred twenty-one thousand, three hundred twenty-four".