220434031 has 2 divisors, whose sum is σ = 220434032. Its totient is φ = 220434030.

The previous prime is 220434023. The next prime is 220434037. The reversal of 220434031 is 130434022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220434031 - 2³ = 220434023 is a prime.

It is a super-4 number, since 4×220434031⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220434037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110217015 + 110217016.

It is an arithmetic number, because the mean of its divisors is an integer number (110217016).

Almost surely, 2^220434031 is an apocalyptic number.

220434031 is a deficient number, since it is larger than the sum of its proper divisors (1).

220434031 is an equidigital number, since it uses as much as digits as its factorization.

220434031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 220434031 is about 14847.0209469779. The cubic root of 220434031 is about 604.0778072871.

Adding to 220434031 its reverse (130434022), we get a palindrome (350868053).

Subtracting from 220434031 its reverse (130434022), we obtain a palindrome (90000009).

The spelling of 220434031 in words is "two hundred twenty million, four hundred thirty-four thousand, thirty-one".