20213324320031 has 8 divisors (see below), whose sum is σ = 20866982045184. Its totient is φ = 19559767532760.

The previous prime is 20213324320009. The next prime is 20213324320081. The reversal of 20213324320031 is 13002342331202.

It is a happy number.

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 20213324320031 - 2¹⁰ = 20213324319007 is a prime.

It is a super-2 number, since 2×20213324320031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213324320081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24827381 + ... + 25628606.

It is an arithmetic number, because the mean of its divisors is an integer number (2608372755648).

Almost surely, 2^{20213324320031} is an apocalyptic number.

20213324320031 is a deficient number, since it is larger than the sum of its proper divisors (653657725153).

20213324320031 is a wasteful number, since it uses less digits than its factorization.

20213324320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50468941.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20213324320031 its reverse (13002342331202), we get a palindrome (33215666651233).

The spelling of 20213324320031 in words is "twenty trillion, two hundred thirteen billion, three hundred twenty-four million, three hundred twenty thousand, thirty-one".