21332113201031 has 4 divisors (see below), whose sum is σ = 21363810249552. Its totient is φ = 21300416152512.

The previous prime is 21332113201001. The next prime is 21332113201037. The reversal of 21332113201031 is 13010231123312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21332113201031 - 2³⁰ = 21331039459207 is a prime.

It is a super-2 number, since 2×21332113201031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21332113200988 and 21332113201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332113201037) 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 3 ways as a sum of consecutive naturals, for example, 15848523251 + ... + 15848524596.

It is an arithmetic number, because the mean of its divisors is an integer number (5340952562388).

Almost surely, 2^{21332113201031} is an apocalyptic number.

21332113201031 is a deficient number, since it is larger than the sum of its proper divisors (31697048521).

21332113201031 is an equidigital number, since it uses as much as digits as its factorization.

21332113201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31697048520.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21332113201031 its reverse (13010231123312), we get a palindrome (34342344324343).

The spelling of 21332113201031 in words is "twenty-one trillion, three hundred thirty-two billion, one hundred thirteen million, two hundred one thousand, thirty-one".