200121112023030 has 320 divisors, whose sum is σ = 601210534560768. Its totient is φ = 47347446896640.

The previous prime is 200121112023023. The next prime is 200121112023031. The reversal of 200121112023030 is 30320211121002.

200121112023030 is a `hidden beast` number, since 200 + 1 + 211 + 1 + 20 + 230 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 200121112022994 and 200121112023012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200121112023031) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 147148929 + ... + 148502691.

Almost surely, 2^{200121112023030} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200121112023030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300605267280384).

200121112023030 is an abundant number, since it is smaller than the sum of its proper divisors (401089422537738).

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

200121112023030 is a wasteful number, since it uses less digits than its factorization.

200121112023030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354193 (or 1354184 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 200121112023030 its reverse (30320211121002), we get a palindrome (230441323144032).

The spelling of 200121112023030 in words is "two hundred trillion, one hundred twenty-one billion, one hundred twelve million, twenty-three thousand, thirty".