421020334132 has 12 divisors (see below), whose sum is σ = 736792822080. Its totient is φ = 210508099256.

The previous prime is 421020334121. The next prime is 421020334159. The reversal of 421020334132 is 231433020124.

It is a junction number, because it is equal to n+sod(n) for n = 421020334097 and 421020334106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1798 + ... + 917629.

It is an arithmetic number, because the mean of its divisors is an integer number (61399401840).

Almost surely, 2^421020334132 is an apocalyptic number.

It is an amenable number.

421020334132 is a deficient number, since it is larger than the sum of its proper divisors (315772487948).

421020334132 is a wasteful number, since it uses less digits than its factorization.

421020334132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033910 (or 1033908 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 421020334132 its reverse (231433020124), we get a palindrome (652453354256).

The spelling of 421020334132 in words is "four hundred twenty-one billion, twenty million, three hundred thirty-four thousand, one hundred thirty-two".