20201223324 has 24 divisors (see below), whose sum is σ = 48285852048. Its totient is φ = 6569503360.

The previous prime is 20201223319. The next prime is 20201223347. The reversal of 20201223324 is 42332210202.

It is a super-2 number, since 2×20201223324² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20201223324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20529207 + ... + 20530190.

It is an arithmetic number, because the mean of its divisors is an integer number (2011910502).

Almost surely, 2^20201223324 is an apocalyptic number.

It is an amenable number.

20201223324 is an abundant number, since it is smaller than the sum of its proper divisors (28084628724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201223324 is a wasteful number, since it uses less digits than its factorization.

20201223324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41059445 (or 41059443 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20201223324 its reverse (42332210202), we get a palindrome (62533433526).

The spelling of 20201223324 in words is "twenty billion, two hundred one million, two hundred twenty-three thousand, three hundred twenty-four".