20302000231 has 4 divisors (see below), whose sum is σ = 20456977464. Its totient is φ = 20147023000.

The previous prime is 20302000211. The next prime is 20302000237. The reversal of 20302000231 is 13200020302.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20302000231 is a prime.

It is a super-2 number, since 2×20302000231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302000237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77488420 + ... + 77488681.

It is an arithmetic number, because the mean of its divisors is an integer number (5114244366).

Almost surely, 2^20302000231 is an apocalyptic number.

20302000231 is a deficient number, since it is larger than the sum of its proper divisors (154977233).

20302000231 is a wasteful number, since it uses less digits than its factorization.

20302000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154977232.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20302000231 its reverse (13200020302), we get a palindrome (33502020533).

The spelling of 20302000231 in words is "twenty billion, three hundred two million, two hundred thirty-one", and thus it is an aban number.