13240143632 has 10 divisors (see below), whose sum is σ = 25652778318. Its totient is φ = 6620071808.

The previous prime is 13240143619. The next prime is 13240143671. The reversal of 13240143632 is 23634104231.

It can be written as a sum of positive squares in only one way, i.e., 11628602896 + 1611540736 = 107836^2 + 40144^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13240143595 and 13240143604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 413754473 + ... + 413754504.

Almost surely, 2^13240143632 is an apocalyptic number.

It is an amenable number.

13240143632 is a deficient number, since it is larger than the sum of its proper divisors (12412634686).

13240143632 is an equidigital number, since it uses as much as digits as its factorization.

13240143632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827508985 (or 827508979 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 13240143632 its reverse (23634104231), we get a palindrome (36874247863).

The spelling of 13240143632 in words is "thirteen billion, two hundred forty million, one hundred forty-three thousand, six hundred thirty-two".