21300011000231 has 16 divisors (see below), whose sum is σ = 23611732956000. Its totient is φ = 19122588592128.

The previous prime is 21300011000137. The next prime is 21300011000251. The reversal of 21300011000231 is 13200011000312.

It is a cyclic number.

It is not a de Polignac number, because 21300011000231 - 2³⁰ = 21298937258407 is a prime.

It is a super-2 number, since 2×21300011000231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300011000251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260229506 + ... + 260311343.

It is an arithmetic number, because the mean of its divisors is an integer number (1475733309750).

Almost surely, 2^{21300011000231} is an apocalyptic number.

21300011000231 is a deficient number, since it is larger than the sum of its proper divisors (2311721955769).

21300011000231 is a wasteful number, since it uses less digits than its factorization.

21300011000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520540978.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21300011000231 its reverse (13200011000312), we get a palindrome (34500022000543).

The spelling of 21300011000231 in words is "twenty-one trillion, three hundred billion, eleven million, two hundred thirty-one", and thus it is an aban number.