220223312431 has 8 divisors (see below), whose sum is σ = 220608670464. Its totient is φ = 219838229280.

The previous prime is 220223312417. The next prime is 220223312447. The reversal of 220223312431 is 134213322022.

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 220223312431 - 2⁵ = 220223312399 is a prime.

It is a super-2 number, since 2×220223312431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220223312396 and 220223312405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220223318431) 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, 1568946 + ... + 1703536.

It is an arithmetic number, because the mean of its divisors is an integer number (27576083808).

Almost surely, 2^220223312431 is an apocalyptic number.

220223312431 is a deficient number, since it is larger than the sum of its proper divisors (385358033).

220223312431 is a wasteful number, since it uses less digits than its factorization.

220223312431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137441.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 220223312431 its reverse (134213322022), we get a palindrome (354436634453).

The spelling of 220223312431 in words is "two hundred twenty billion, two hundred twenty-three million, three hundred twelve thousand, four hundred thirty-one".