13201231520244 has 24 divisors (see below), whose sum is σ = 30884147630560. Its totient is φ = 4388799923424.

The previous prime is 13201231520227. The next prime is 13201231520303. The reversal of 13201231520244 is 44202513210231.

It is a happy number.

It is a super-2 number, since 2×13201231520244² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1451318179 + ... + 1451327274.

Almost surely, 2^{13201231520244} is an apocalyptic number.

It is an amenable number.

13201231520244 is an abundant number, since it is smaller than the sum of its proper divisors (17682916110316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13201231520244 is a wasteful number, since it uses less digits than its factorization.

13201231520244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902645839 (or 2902645837 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 13201231520244 its reverse (44202513210231), we get a palindrome (57403744730475).

The spelling of 13201231520244 in words is "thirteen trillion, two hundred one billion, two hundred thirty-one million, five hundred twenty thousand, two hundred forty-four".