431041001220 has 72 divisors (see below), whose sum is σ = 1307571195840. Its totient is φ = 114937220160.

The previous prime is 431041001219. The next prime is 431041001227. The reversal of 431041001220 is 22100140134.

431041001220 is a `hidden beast` number, since 4 + 31 + 0 + 410 + 0 + 1 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 431041001193 and 431041001202.

It is not an unprimeable number, because it can be changed into a prime (431041001227) 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 23 ways as a sum of consecutive naturals, for example, 3300321 + ... + 3428439.

Almost surely, 2^431041001220 is an apocalyptic number.

It is an amenable number.

431041001220 is an abundant number, since it is smaller than the sum of its proper divisors (876530194620).

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

431041001220 is a wasteful number, since it uses less digits than its factorization.

431041001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146825 (or 146820 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 431041001220 its reverse (22100140134), we get a palindrome (453141141354).

The spelling of 431041001220 in words is "four hundred thirty-one billion, forty-one million, one thousand, two hundred twenty".