420130021432 has 16 divisors (see below), whose sum is σ = 859356862200. Its totient is φ = 190968191520.

The previous prime is 420130021417. The next prime is 420130021457. The reversal of 420130021432 is 234120031024.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2387102307 + ... + 2387102482.

Almost surely, 2^420130021432 is an apocalyptic number.

It is an amenable number.

420130021432 is an abundant number, since it is smaller than the sum of its proper divisors (439226840768).

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

420130021432 is a wasteful number, since it uses less digits than its factorization.

420130021432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774204806 (or 4774204802 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 420130021432 its reverse (234120031024), we get a palindrome (654250052456).

The spelling of 420130021432 in words is "four hundred twenty billion, one hundred thirty million, twenty-one thousand, four hundred thirty-two".