20223120320031 has 24 divisors (see below), whose sum is σ = 29567575888384. Its totient is φ = 12279693536640.

The previous prime is 20223120320027. The next prime is 20223120320047. The reversal of 20223120320031 is 13002302132202.

It is a happy number.

It is not a de Polignac number, because 20223120320031 - 2² = 20223120320027 is a prime.

It is a super-2 number, since 2×20223120320031² (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 (20223120120031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 376189225 + ... + 376242978.

Almost surely, 2^{20223120320031} is an apocalyptic number.

20223120320031 is a deficient number, since it is larger than the sum of its proper divisors (9344455568353).

20223120320031 is a wasteful number, since it uses less digits than its factorization.

20223120320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752432271 (or 752432254 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20223120320031 its reverse (13002302132202), we get a palindrome (33225422452233).

The spelling of 20223120320031 in words is "twenty trillion, two hundred twenty-three billion, one hundred twenty million, three hundred twenty thousand, thirty-one".