21322100331031 has 12 divisors (see below), whose sum is σ = 22667692671360. Its totient is φ = 20052290236160.

The previous prime is 21322100331019. The next prime is 21322100331053. The reversal of 21322100331031 is 13013300122312.

It is not a de Polignac number, because 21322100331031 - 2¹¹ = 21322100328983 is a prime.

It is a super-2 number, since 2×21322100331031² (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 = 21322100330993 and 21322100331011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322100431031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28246135 + ... + 28991176.

It is an arithmetic number, because the mean of its divisors is an integer number (1888974389280).

Almost surely, 2^{21322100331031} is an apocalyptic number.

21322100331031 is a deficient number, since it is larger than the sum of its proper divisors (1345592340329).

21322100331031 is a wasteful number, since it uses less digits than its factorization.

21322100331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57238634 (or 57238617 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21322100331031 its reverse (13013300122312), we get a palindrome (34335400453343).

The spelling of 21322100331031 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred million, three hundred thirty-one thousand, thirty-one".