4431231130220 has 24 divisors (see below), whose sum is σ = 9329025151824. Its totient is φ = 1768027732416.

The previous prime is 4431231130217. The next prime is 4431231130237. The reversal of 4431231130220 is 220311321344.

It is a self number, because there is not a number n which added to its sum of digits gives 4431231130220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279036842 + ... + 279052721.

It is an arithmetic number, because the mean of its divisors is an integer number (388709381326).

Almost surely, 2^{4431231130220} is an apocalyptic number.

It is an amenable number.

4431231130220 is an abundant number, since it is smaller than the sum of its proper divisors (4897794021604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4431231130220 is a wasteful number, since it uses less digits than its factorization.

4431231130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558089969 (or 558089967 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 4431231130220 its reverse (220311321344), we get a palindrome (4651542451564).

The spelling of 4431231130220 in words is "four trillion, four hundred thirty-one billion, two hundred thirty-one million, one hundred thirty thousand, two hundred twenty".