421432023012 has 384 divisors, whose sum is σ = 1381635698688. Its totient is φ = 96451430400.

The previous prime is 421432022969. The next prime is 421432023053. The reversal of 421432023012 is 210320234124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23546587 + ... + 23564477.

It is an arithmetic number, because the mean of its divisors is an integer number (3598009632).

Almost surely, 2^421432023012 is an apocalyptic number.

421432023012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421432023012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690817849344).

421432023012 is an abundant number, since it is smaller than the sum of its proper divisors (960203675676).

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

421432023012 is a wasteful number, since it uses less digits than its factorization.

421432023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18019 (or 18017 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 421432023012 its reverse (210320234124), we get a palindrome (631752257136).

The spelling of 421432023012 in words is "four hundred twenty-one billion, four hundred thirty-two million, twenty-three thousand, twelve".