21332131013 has 8 divisors (see below), whose sum is σ = 21459271680. Its totient is φ = 21205181200.

The previous prime is 21332130959. The next prime is 21332131031. The reversal of 21332131013 is 31013123312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21332131013 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 (21332131033) 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, 179708 + ... + 273786.

It is an arithmetic number, because the mean of its divisors is an integer number (2682408960).

Almost surely, 2^21332131013 is an apocalyptic number.

It is an amenable number.

21332131013 is a deficient number, since it is larger than the sum of its proper divisors (127140667).

21332131013 is a wasteful number, since it uses less digits than its factorization.

21332131013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95427.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21332131013 its reverse (31013123312), we get a palindrome (52345254325).

The spelling of 21332131013 in words is "twenty-one billion, three hundred thirty-two million, one hundred thirty-one thousand, thirteen".