21411301325 has 24 divisors (see below), whose sum is σ = 26645794560. Its totient is φ = 17067377600.

The previous prime is 21411301319. The next prime is 21411301333. The reversal of 21411301325 is 52310311412.

It is not a de Polignac number, because 21411301325 - 2²² = 21407107021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21411301325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11591552 + ... + 11593398.

It is an arithmetic number, because the mean of its divisors is an integer number (1110241440).

Almost surely, 2^21411301325 is an apocalyptic number.

21411301325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21411301325 is a deficient number, since it is larger than the sum of its proper divisors (5234493235).

21411301325 is a wasteful number, since it uses less digits than its factorization.

21411301325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277 (or 3272 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 21411301325 its reverse (52310311412), we get a palindrome (73721612737).

The spelling of 21411301325 in words is "twenty-one billion, four hundred eleven million, three hundred one thousand, three hundred twenty-five".