21264021160103 has 8 divisors (see below), whose sum is σ = 21355812500256. Its totient is φ = 21172234345600.

The previous prime is 21264021160099. The next prime is 21264021160139. The reversal of 21264021160103 is 30106112046212.

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

It is a cyclic number.

It is not a de Polignac number, because 21264021160103 - 2² = 21264021160099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21264021162103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8461118 + ... + 10682628.

It is an arithmetic number, because the mean of its divisors is an integer number (2669476562532).

Almost surely, 2^{21264021160103} is an apocalyptic number.

21264021160103 is a deficient number, since it is larger than the sum of its proper divisors (91791340153).

21264021160103 is a wasteful number, since it uses less digits than its factorization.

21264021160103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262825.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 21264021160103 in words is "twenty-one trillion, two hundred sixty-four billion, twenty-one million, one hundred sixty thousand, one hundred three".