21031241041432 has 8 divisors (see below), whose sum is σ = 39433576952700. Its totient is φ = 10515620520712.

The previous prime is 21031241041429. The next prime is 21031241041457. The reversal of 21031241041432 is 23414014213012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×21031241041432² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21031241041432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314452565082 + ... + 1314452565097.

Almost surely, 2^{21031241041432} is an apocalyptic number.

It is an amenable number.

21031241041432 is a deficient number, since it is larger than the sum of its proper divisors (18402335911268).

21031241041432 is a wasteful number, since it uses less digits than its factorization.

21031241041432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628905130185 (or 2628905130181 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21031241041432 its reverse (23414014213012), we get a palindrome (44445255254444).

The spelling of 21031241041432 in words is "twenty-one trillion, thirty-one billion, two hundred forty-one million, forty-one thousand, four hundred thirty-two".