21311230032213 has 8 divisors (see below), whose sum is σ = 30998152774176. Its totient is φ = 12915896989200.

The previous prime is 21311230032133. The next prime is 21311230032221. The reversal of 21311230032213 is 31223003211312.

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

It is not a de Polignac number, because 21311230032213 - 2¹⁸ = 21311229770069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21311234032213) 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, 322897424698 + ... + 322897424763.

It is an arithmetic number, because the mean of its divisors is an integer number (3874769096772).

Almost surely, 2^{21311230032213} is an apocalyptic number.

It is an amenable number.

21311230032213 is a deficient number, since it is larger than the sum of its proper divisors (9686922741963).

21311230032213 is a wasteful number, since it uses less digits than its factorization.

21311230032213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645794849475.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21311230032213 its reverse (31223003211312), we get a palindrome (52534233243525).

The spelling of 21311230032213 in words is "twenty-one trillion, three hundred eleven billion, two hundred thirty million, thirty-two thousand, two hundred thirteen".