223420535431 has 8 divisors (see below), whose sum is σ = 235208854400. Its totient is φ = 211635150840.

The previous prime is 223420535417. The next prime is 223420535449. The reversal of 223420535431 is 134535024322.

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 223420535431 - 2⁵ = 223420535399 is a prime.

It is a super-2 number, since 2×223420535431² (a number of 23 digits) contains 22 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 (223420535461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576435 + ... + 882676.

It is an arithmetic number, because the mean of its divisors is an integer number (29401106800).

Almost surely, 2^223420535431 is an apocalyptic number.

223420535431 is a deficient number, since it is larger than the sum of its proper divisors (11788318969).

223420535431 is a wasteful number, since it uses less digits than its factorization.

223420535431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467189.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 223420535431 its reverse (134535024322), we get a palindrome (357955559753).

The spelling of 223420535431 in words is "two hundred twenty-three billion, four hundred twenty million, five hundred thirty-five thousand, four hundred thirty-one".