20243103432021 has 12 divisors (see below), whose sum is σ = 30511344303648. Its totient is φ = 12908645666664.

The previous prime is 20243103432011. The next prime is 20243103432109. The reversal of 20243103432021 is 12023430134202.

20243103432021 is a `hidden beast` number, since 2 + 0 + 2 + 4 + 310 + 3 + 4 + 320 + 21 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-20243103432021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243103432011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48896384895 + ... + 48896385308.

It is an arithmetic number, because the mean of its divisors is an integer number (2542612025304).

Almost surely, 2^{20243103432021} is an apocalyptic number.

It is an amenable number.

20243103432021 is a deficient number, since it is larger than the sum of its proper divisors (10268240871627).

20243103432021 is a wasteful number, since it uses less digits than its factorization.

20243103432021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97792770232 (or 97792770229 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20243103432021 its reverse (12023430134202), we get a palindrome (32266533566223).

The spelling of 20243103432021 in words is "twenty trillion, two hundred forty-three billion, one hundred three million, four hundred thirty-two thousand, twenty-one".