421312134223300 has 72 divisors (see below), whose sum is σ = 919345955483592. Its totient is φ = 167585111424000.

The previous prime is 421312134223271. The next prime is 421312134223363. The reversal of 421312134223300 is 3322431213124.

It can be written as a sum of positive squares in 12 ways, for example, as 85014632834244 + 336297501389056 = 9220338^2 + 18338416^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 355272144 + ... + 356456056.

It is an arithmetic number, because the mean of its divisors is an integer number (12768693826161).

Almost surely, 2^{421312134223300} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421312134223300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459672977741796).

421312134223300 is an abundant number, since it is smaller than the sum of its proper divisors (498033821260292).

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

421312134223300 is a wasteful number, since it uses less digits than its factorization.

421312134223300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203769 (or 1203762 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 421312134223300 its reverse (3322431213124), we get a palindrome (424634565436424).

The spelling of 421312134223300 in words is "four hundred twenty-one trillion, three hundred twelve billion, one hundred thirty-four million, two hundred twenty-three thousand, three hundred".