21033000122031 has 6 divisors (see below), whose sum is σ = 30381000176280. Its totient is φ = 14022000081348.

The previous prime is 21033000122027. The next prime is 21033000122051. The reversal of 21033000122031 is 13022100033012.

21033000122031 is a `hidden beast` number, since 210 + 3 + 300 + 0 + 122 + 0 + 31 = 666.

It is not a de Polignac number, because 21033000122031 - 2² = 21033000122027 is a prime.

It is a super-2 number, since 2×21033000122031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21033000121995 and 21033000122013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033000122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1168500006771 + ... + 1168500006788.

It is an arithmetic number, because the mean of its divisors is an integer number (5063500029380).

Almost surely, 2^{21033000122031} is an apocalyptic number.

21033000122031 is a deficient number, since it is larger than the sum of its proper divisors (9348000054249).

21033000122031 is a wasteful number, since it uses less digits than its factorization.

21033000122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337000013565 (or 2337000013562 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21033000122031 its reverse (13022100033012), we get a palindrome (34055100155043).

The spelling of 21033000122031 in words is "twenty-one trillion, thirty-three billion, one hundred twenty-two thousand, thirty-one".