20303212101 has 16 divisors (see below), whose sum is σ = 27651110400. Its totient is φ = 13247416688.

The previous prime is 20303212099. The next prime is 20303212103. The reversal of 20303212101 is 10121230302.

It is an interprime number because it is at equal distance from previous prime (20303212099) and next prime (20303212103).

It is a cyclic number.

It is not a de Polignac number, because 20303212101 - 2¹ = 20303212099 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 (20303212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212481 + ... + 292838.

It is an arithmetic number, because the mean of its divisors is an integer number (1728194400).

Almost surely, 2^20303212101 is an apocalyptic number.

It is an amenable number.

20303212101 is a deficient number, since it is larger than the sum of its proper divisors (7347898299).

20303212101 is a wasteful number, since it uses less digits than its factorization.

20303212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505608.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20303212101 its reverse (10121230302), we get a palindrome (30424442403).

The spelling of 20303212101 in words is "twenty billion, three hundred three million, two hundred twelve thousand, one hundred one".