421043232203252 has 24 divisors (see below), whose sum is σ = 760604141928960. Its totient is φ = 203727940152480.

The previous prime is 421043232203207. The next prime is 421043232203287. The reversal of 421043232203252 is 252302232340124.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12567752 + ... + 31623327.

It is an arithmetic number, because the mean of its divisors is an integer number (31691839247040).

Almost surely, 2^{421043232203252} is an apocalyptic number.

It is an amenable number.

421043232203252 is a deficient number, since it is larger than the sum of its proper divisors (339560909725708).

421043232203252 is a wasteful number, since it uses less digits than its factorization.

421043232203252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44267951 (or 44267949 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 421043232203252 its reverse (252302232340124), we get a palindrome (673345464543376).

The spelling of 421043232203252 in words is "four hundred twenty-one trillion, forty-three billion, two hundred thirty-two million, two hundred three thousand, two hundred fifty-two".