200020323021512 has 128 divisors (see below), whose sum is σ = 452640556892160. Its totient is φ = 81011410191360.

The previous prime is 200020323021511. The next prime is 200020323021523. The reversal of 200020323021512 is 215120323020002.

It is a super-2 number, since 2×200020323021512² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (200020323021511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55429088 + ... + 58927280.

It is an arithmetic number, because the mean of its divisors is an integer number (3536254350720).

Almost surely, 2^{200020323021512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200020323021512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226320278446080).

200020323021512 is an abundant number, since it is smaller than the sum of its proper divisors (252620233870648).

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

200020323021512 is a wasteful number, since it uses less digits than its factorization.

200020323021512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3498763 (or 3498759 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 200020323021512 its reverse (215120323020002), we get a palindrome (415140646041514).

The spelling of 200020323021512 in words is "two hundred trillion, twenty billion, three hundred twenty-three million, twenty-one thousand, five hundred twelve".