421031430032 has 10 divisors (see below), whose sum is σ = 815748395718. Its totient is φ = 210515715008.

The previous prime is 421031430013. The next prime is 421031430049. The reversal of 421031430032 is 230034130124.

It can be written as a sum of positive squares in only one way, i.e., 394162974976 + 26868455056 = 627824^2 + 163916^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13157232173 + ... + 13157232204.

Almost surely, 2^421031430032 is an apocalyptic number.

It is an amenable number.

421031430032 is a deficient number, since it is larger than the sum of its proper divisors (394716965686).

421031430032 is a wasteful number, since it uses less digits than its factorization.

421031430032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26314464385 (or 26314464379 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 421031430032 its reverse (230034130124), we get a palindrome (651065560156).

The spelling of 421031430032 in words is "four hundred twenty-one billion, thirty-one million, four hundred thirty thousand, thirty-two".