20300232121 has 8 divisors (see below), whose sum is σ = 21863496200. Its totient is φ = 18737212032.

The previous prime is 20300232119. The next prime is 20300232131. The reversal of 20300232121 is 12123200302.

It can be written as a sum of positive squares in 4 ways, for example, as 239475625 + 20060756496 = 15475^2 + 141636^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20300232121 - 2¹ = 20300232119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20300232095 and 20300232104.

It is not an unprimeable number, because it can be changed into a prime (20300232131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135205 + ... + 242653.

It is an arithmetic number, because the mean of its divisors is an integer number (2732937025).

Almost surely, 2^20300232121 is an apocalyptic number.

It is an amenable number.

20300232121 is a deficient number, since it is larger than the sum of its proper divisors (1563264079).

20300232121 is a wasteful number, since it uses less digits than its factorization.

20300232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121995.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20300232121 its reverse (12123200302), we get a palindrome (32423432423).

The spelling of 20300232121 in words is "twenty billion, three hundred million, two hundred thirty-two thousand, one hundred twenty-one".