13530231044 has 24 divisors (see below), whose sum is σ = 25979764608. Its totient is φ = 6114551840.

The previous prime is 13530231017. The next prime is 13530231047. The reversal of 13530231044 is 44013203531.

It is not an unprimeable number, because it can be changed into a prime (13530231047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 881132 + ... + 896355.

It is an arithmetic number, because the mean of its divisors is an integer number (1082490192).

Almost surely, 2^13530231044 is an apocalyptic number.

It is an amenable number.

13530231044 is a deficient number, since it is larger than the sum of its proper divisors (12449533564).

13530231044 is a wasteful number, since it uses less digits than its factorization.

13530231044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777675 (or 1777673 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 13530231044 its reverse (44013203531), we get a palindrome (57543434575).

The spelling of 13530231044 in words is "thirteen billion, five hundred thirty million, two hundred thirty-one thousand, forty-four".