20110031223 has 32 divisors (see below), whose sum is σ = 27662872320. Its totient is φ = 12989687040.

The previous prime is 20110031177. The next prime is 20110031261. The reversal of 20110031223 is 32213001102.

It is not a de Polignac number, because 20110031223 - 2¹⁴ = 20110014839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110031023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4607040 + ... + 4611402.

It is an arithmetic number, because the mean of its divisors is an integer number (864464760).

Almost surely, 2^20110031223 is an apocalyptic number.

20110031223 is a deficient number, since it is larger than the sum of its proper divisors (7552841097).

20110031223 is a wasteful number, since it uses less digits than its factorization.

20110031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20110031223 its reverse (32213001102), we get a palindrome (52323032325).

The spelling of 20110031223 in words is "twenty billion, one hundred ten million, thirty-one thousand, two hundred twenty-three".