223131404423 has 4 divisors (see below), whose sum is σ = 226461723960. Its totient is φ = 219801084888.

The previous prime is 223131404401. The next prime is 223131404459. The reversal of 223131404423 is 324404131322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223131404423 is a prime.

It is a super-3 number, since 3×223131404423³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223131484423) 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, 1665159668 + ... + 1665159801.

It is an arithmetic number, because the mean of its divisors is an integer number (56615430990).

Almost surely, 2^223131404423 is an apocalyptic number.

223131404423 is a deficient number, since it is larger than the sum of its proper divisors (3330319537).

223131404423 is an equidigital number, since it uses as much as digits as its factorization.

223131404423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330319536.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 223131404423 its reverse (324404131322), we get a palindrome (547535535745).

The spelling of 223131404423 in words is "two hundred twenty-three billion, one hundred thirty-one million, four hundred four thousand, four hundred twenty-three".