21310325054 has 8 divisors (see below), whose sum is σ = 31973185920. Its totient is φ = 10652596416.

The previous prime is 21310325041. The next prime is 21310325059. The reversal of 21310325054 is 45052301312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310325059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272659 + ... + 1289294.

It is an arithmetic number, because the mean of its divisors is an integer number (3996648240).

Almost surely, 2^21310325054 is an apocalyptic number.

21310325054 is a deficient number, since it is larger than the sum of its proper divisors (10662860866).

21310325054 is a wasteful number, since it uses less digits than its factorization.

21310325054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566114.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 21310325054 its reverse (45052301312), we get a palindrome (66362626366).

The spelling of 21310325054 in words is "twenty-one billion, three hundred ten million, three hundred twenty-five thousand, fifty-four".