223031231131 has 8 divisors (see below), whose sum is σ = 240229478720. Its totient is φ = 206378959752.

The previous prime is 223031231123. The next prime is 223031231141. The reversal of 223031231131 is 131132130322.

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

It is a cyclic number.

It is not a de Polignac number, because 223031231131 - 2³ = 223031231123 is a prime.

It is a super-2 number, since 2×223031231131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223031231141) 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, 136493205 + ... + 136494838.

It is an arithmetic number, because the mean of its divisors is an integer number (30028684840).

Almost surely, 2^223031231131 is an apocalyptic number.

223031231131 is a deficient number, since it is larger than the sum of its proper divisors (17198247589).

223031231131 is a wasteful number, since it uses less digits than its factorization.

223031231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272988105.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 223031231131 its reverse (131132130322), we get a palindrome (354163361453).

The spelling of 223031231131 in words is "two hundred twenty-three billion, thirty-one million, two hundred thirty-one thousand, one hundred thirty-one".