20303332231 has 48 divisors (see below), whose sum is σ = 26867140608. Its totient is φ = 15183806400.

The previous prime is 20303332211. The next prime is 20303332241. The reversal of 20303332231 is 13223330302.

It is not a de Polignac number, because 20303332231 - 2¹¹ = 20303330183 is a prime.

It is a super-2 number, since 2×20303332231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303332201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 837166 + ... + 861076.

It is an arithmetic number, because the mean of its divisors is an integer number (559732096).

Almost surely, 2^20303332231 is an apocalyptic number.

20303332231 is a deficient number, since it is larger than the sum of its proper divisors (6563808377).

20303332231 is a wasteful number, since it uses less digits than its factorization.

20303332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24012 (or 24005 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20303332231 its reverse (13223330302), we get a palindrome (33526662533).

The spelling of 20303332231 in words is "twenty billion, three hundred three million, three hundred thirty-two thousand, two hundred thirty-one".