20200121212003 has 8 divisors (see below), whose sum is σ = 20234301422720. Its totient is φ = 20165961553920.

The previous prime is 20200121211923. The next prime is 20200121212043. The reversal of 20200121212003 is 30021212100202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20200121212003 is a prime.

It is a super-2 number, since 2×20200121212003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200121212043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3170163 + ... + 7102828.

It is an arithmetic number, because the mean of its divisors is an integer number (2529287677840).

Almost surely, 2^{20200121212003} is an apocalyptic number.

20200121212003 is a deficient number, since it is larger than the sum of its proper divisors (34180210717).

20200121212003 is a wasteful number, since it uses less digits than its factorization.

20200121212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276317.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20200121212003 its reverse (30021212100202), we get a palindrome (50221333312205).

The spelling of 20200121212003 in words is "twenty trillion, two hundred billion, one hundred twenty-one million, two hundred twelve thousand, three".