20301231232 has 32 divisors (see below), whose sum is σ = 40450393980. Its totient is φ = 10148975616.

The previous prime is 20301231193. The next prime is 20301231239. The reversal of 20301231232 is 23213210302.

It can be written as a sum of positive squares in 2 ways, for example, as 14233444416 + 6067786816 = 119304^2 + 77896^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (20301231239) 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, 1330398 + ... + 1345570.

Almost surely, 2^20301231232 is an apocalyptic number.

It is an amenable number.

20301231232 is a deficient number, since it is larger than the sum of its proper divisors (20149162748).

20301231232 is a wasteful number, since it uses less digits than its factorization.

20301231232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25640 (or 25628 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20301231232 its reverse (23213210302), we get a palindrome (43514441534).

The spelling of 20301231232 in words is "twenty billion, three hundred one million, two hundred thirty-one thousand, two hundred thirty-two".