421233533121 has 8 divisors (see below), whose sum is σ = 561661869024. Its totient is φ = 280813776320.

The previous prime is 421233533029. The next prime is 421233533129. The reversal of 421233533121 is 121335332124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421233533121 - 2²⁷ = 421099315393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421233533129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2029320 + ... + 2227241.

It is an arithmetic number, because the mean of its divisors is an integer number (70207733628).

Almost surely, 2^421233533121 is an apocalyptic number.

It is an amenable number.

421233533121 is a deficient number, since it is larger than the sum of its proper divisors (140428335903).

421233533121 is a wasteful number, since it uses less digits than its factorization.

421233533121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289551.

The product of its digits is 12960, while the sum is 30.

Adding to 421233533121 its reverse (121335332124), we get a palindrome (542568865245).

The spelling of 421233533121 in words is "four hundred twenty-one billion, two hundred thirty-three million, five hundred thirty-three thousand, one hundred twenty-one".