20031011320223 has 8 divisors (see below), whose sum is σ = 20045263664400. Its totient is φ = 20016762026688.

The previous prime is 20031011320193. The next prime is 20031011320277. The reversal of 20031011320223 is 32202311013002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20031011320223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20031011320195 and 20031011320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031016320223) 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, 12455723 + ... + 13971651.

It is an arithmetic number, because the mean of its divisors is an integer number (2505657958050).

Almost surely, 2^{20031011320223} is an apocalyptic number.

20031011320223 is a deficient number, since it is larger than the sum of its proper divisors (14252344177).

20031011320223 is a wasteful number, since it uses less digits than its factorization.

20031011320223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525321.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20031011320223 its reverse (32202311013002), we get a palindrome (52233322333225).

The spelling of 20031011320223 in words is "twenty trillion, thirty-one billion, eleven million, three hundred twenty thousand, two hundred twenty-three".