21441031252532 has 24 divisors (see below), whose sum is σ = 38036354044416. Its totient is φ = 10573505788608.

The previous prime is 21441031252477. The next prime is 21441031252549. The reversal of 21441031252532 is 23525213014412.

It is a super-2 number, since 2×21441031252532² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21441031252492 and 21441031252501.

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, 21125903 + ... + 22117545.

It is an arithmetic number, because the mean of its divisors is an integer number (1584848085184).

Almost surely, 2^{21441031252532} is an apocalyptic number.

It is an amenable number.

21441031252532 is a deficient number, since it is larger than the sum of its proper divisors (16595322791884).

21441031252532 is a wasteful number, since it uses less digits than its factorization.

21441031252532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065767 (or 1065765 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 21441031252532 its reverse (23525213014412), we get a palindrome (44966244266944).

The spelling of 21441031252532 in words is "twenty-one trillion, four hundred forty-one billion, thirty-one million, two hundred fifty-two thousand, five hundred thirty-two".