20031012112223 has 16 divisors (see below), whose sum is σ = 23008585676544. Its totient is φ = 17082491751360.

The previous prime is 20031012112219. The next prime is 20031012112229. The reversal of 20031012112223 is 32221121013002.

It is not a de Polignac number, because 20031012112223 - 2² = 20031012112219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20031012112195 and 20031012112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031012112229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2319011 + ... + 6740907.

It is an arithmetic number, because the mean of its divisors is an integer number (1438036604784).

Almost surely, 2^{20031012112223} is an apocalyptic number.

20031012112223 is a deficient number, since it is larger than the sum of its proper divisors (2977573564321).

20031012112223 is a wasteful number, since it uses less digits than its factorization.

20031012112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425182.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20031012112223 its reverse (32221121013002), we get a palindrome (52252133125225).

The spelling of 20031012112223 in words is "twenty trillion, thirty-one billion, twelve million, one hundred twelve thousand, two hundred twenty-three".