21107452321288 has 32 divisors (see below), whose sum is σ = 40499011476000. Its totient is φ = 10307742052608.

The previous prime is 21107452321231. The next prime is 21107452321289. The reversal of 21107452321288 is 88212325470112.

It is not an unprimeable number, because it can be changed into a prime (21107452321289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4877920 + ... + 8124592.

It is an arithmetic number, because the mean of its divisors is an integer number (1265594108625).

Almost surely, 2^{21107452321288} is an apocalyptic number.

It is an amenable number.

21107452321288 is a deficient number, since it is larger than the sum of its proper divisors (19391559154712).

21107452321288 is a wasteful number, since it uses less digits than its factorization.

21107452321288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265621 (or 3265617 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 21107452321288 in words is "twenty-one trillion, one hundred seven billion, four hundred fifty-two million, three hundred twenty-one thousand, two hundred eighty-eight".