20203200012101 has 4 divisors (see below), whose sum is σ = 20203372875372. Its totient is φ = 20203027148832.

The previous prime is 20203200012041. The next prime is 20203200012119. The reversal of 20203200012101 is 10121000230202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5503720692001 + 14699479320100 = 2346001^2 + 3833990^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203200012101 - 2²² = 20203195817797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203200012901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86256206 + ... + 86490111.

It is an arithmetic number, because the mean of its divisors is an integer number (5050843218843).

Almost surely, 2^{20203200012101} is an apocalyptic number.

It is an amenable number.

20203200012101 is a deficient number, since it is larger than the sum of its proper divisors (172863271).

20203200012101 is a wasteful number, since it uses less digits than its factorization.

20203200012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172863270.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20203200012101 its reverse (10121000230202), we get a palindrome (30324200242303).

The spelling of 20203200012101 in words is "twenty trillion, two hundred three billion, two hundred million, twelve thousand, one hundred one".