21133322102031 has 4 divisors (see below), whose sum is σ = 28177762802712. Its totient is φ = 14088881401352.

The previous prime is 21133322101919. The next prime is 21133322102111. The reversal of 21133322102031 is 13020122333112.

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 21133322102031 - 2¹⁴ = 21133322085647 is a prime.

It is a super-2 number, since 2×21133322102031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21133322101992 and 21133322102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133322902031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3522220350336 + ... + 3522220350341.

It is an arithmetic number, because the mean of its divisors is an integer number (7044440700678).

Almost surely, 2^{21133322102031} is an apocalyptic number.

21133322102031 is a deficient number, since it is larger than the sum of its proper divisors (7044440700681).

21133322102031 is an equidigital number, since it uses as much as digits as its factorization.

21133322102031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044440700680.

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

Adding to 21133322102031 its reverse (13020122333112), we get a palindrome (34153444435143).

The spelling of 21133322102031 in words is "twenty-one trillion, one hundred thirty-three billion, three hundred twenty-two million, one hundred two thousand, thirty-one".