20323035012 has 48 divisors (see below), whose sum is σ = 54803710080. Its totient is φ = 5741336832.

The previous prime is 20323034993. The next prime is 20323035013. The reversal of 20323035012 is 21053032302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20323035012.

It is not an unprimeable number, because it can be changed into a prime (20323035013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1351743 + ... + 1366694.

It is an arithmetic number, because the mean of its divisors is an integer number (1141743960).

Almost surely, 2^20323035012 is an apocalyptic number.

It is an amenable number.

20323035012 is an abundant number, since it is smaller than the sum of its proper divisors (34480675068).

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

20323035012 is a wasteful number, since it uses less digits than its factorization.

20323035012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718540 (or 2718538 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 20323035012 its reverse (21053032302), we get a palindrome (41376067314).

The spelling of 20323035012 in words is "twenty billion, three hundred twenty-three million, thirty-five thousand, twelve".