21313033032031 has 8 divisors (see below), whose sum is σ = 22975021656720. Its totient is φ = 19654262199552.

The previous prime is 21313033032029. The next prime is 21313033032077. The reversal of 21313033032031 is 13023033031312.

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

It is a cyclic number.

It is not a de Polignac number, because 21313033032031 - 2¹ = 21313033032029 is a prime.

It is a super-2 number, since 2×21313033032031² (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 = 21313033031987 and 21313033032005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21313033035031) 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, 804434290 + ... + 804460783.

It is an arithmetic number, because the mean of its divisors is an integer number (2871877707090).

Almost surely, 2^{21313033032031} is an apocalyptic number.

21313033032031 is a deficient number, since it is larger than the sum of its proper divisors (1661988624689).

21313033032031 is a wasteful number, since it uses less digits than its factorization.

21313033032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608896105.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 21313033032031 its reverse (13023033031312), we get a palindrome (34336066063343).

The spelling of 21313033032031 in words is "twenty-one trillion, three hundred thirteen billion, thirty-three million, thirty-two thousand, thirty-one".