220316431 has 4 divisors (see below), whose sum is σ = 220542912. Its totient is φ = 220089952.

The previous prime is 220316407. The next prime is 220316441. The reversal of 220316431 is 134613022.

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

It is a cyclic number.

It is not a de Polignac number, because 220316431 - 2⁷ = 220316303 is a prime.

It is a super-2 number, since 2×220316431² = 97078659537155522, which 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 (220316441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111775 + ... + 113728.

It is an arithmetic number, because the mean of its divisors is an integer number (55135728).

Almost surely, 2^220316431 is an apocalyptic number.

220316431 is a deficient number, since it is larger than the sum of its proper divisors (226481).

220316431 is an equidigital number, since it uses as much as digits as its factorization.

220316431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226480.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 220316431 is about 14843.0600281748. The cubic root of 220316431 is about 603.9703644290.

Adding to 220316431 its reverse (134613022), we get a palindrome (354929453).

The spelling of 220316431 in words is "two hundred twenty million, three hundred sixteen thousand, four hundred thirty-one".