420134431120 has 40 divisors (see below), whose sum is σ = 1028223743040. Its totient is φ = 159208836480.

The previous prime is 420134431097. The next prime is 420134431147. The reversal of 420134431120 is 21134431024.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138200596 + ... + 138203635.

It is an arithmetic number, because the mean of its divisors is an integer number (25705593576).

Almost surely, 2^420134431120 is an apocalyptic number.

420134431120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420134431120 is an abundant number, since it is smaller than the sum of its proper divisors (608089311920).

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

420134431120 is a wasteful number, since it uses less digits than its factorization.

420134431120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276404263 (or 276404257 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 420134431120 its reverse (21134431024), we get a palindrome (441268862144).

The spelling of 420134431120 in words is "four hundred twenty billion, one hundred thirty-four million, four hundred thirty-one thousand, one hundred twenty".