223117489831 has 4 divisors (see below), whose sum is σ = 223120451664. Its totient is φ = 223114528000.

The previous prime is 223117489807. The next prime is 223117489843. The reversal of 223117489831 is 138984711322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 138984711322 = 2 ⋅69492355661.

It is a cyclic number.

It is not a de Polignac number, because 223117489831 - 2⁷ = 223117489703 is a prime.

It is a super-3 number, since 3×223117489831³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223117489871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364890 + ... + 1519591.

It is an arithmetic number, because the mean of its divisors is an integer number (55780112916).

Almost surely, 2^223117489831 is an apocalyptic number.

223117489831 is a deficient number, since it is larger than the sum of its proper divisors (2961833).

223117489831 is an equidigital number, since it uses as much as digits as its factorization.

223117489831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961832.

The product of its digits is 580608, while the sum is 49.

The spelling of 223117489831 in words is "two hundred twenty-three billion, one hundred seventeen million, four hundred eighty-nine thousand, eight hundred thirty-one".