421225431433 has 16 divisors (see below), whose sum is σ = 450846144000. Its totient is φ = 392671722240.

The previous prime is 421225431421. The next prime is 421225431461. The reversal of 421225431433 is 334134522124.

It is a cyclic number.

It is not a de Polignac number, because 421225431433 - 2³³ = 412635496841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421225431413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151783 + ... + 930316.

It is an arithmetic number, because the mean of its divisors is an integer number (28177884000).

Almost surely, 2^421225431433 is an apocalyptic number.

It is an amenable number.

421225431433 is a deficient number, since it is larger than the sum of its proper divisors (29620712567).

421225431433 is a wasteful number, since it uses less digits than its factorization.

421225431433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082592.

The product of its digits is 69120, while the sum is 34.

Adding to 421225431433 its reverse (334134522124), we get a palindrome (755359953557).

The spelling of 421225431433 in words is "four hundred twenty-one billion, two hundred twenty-five million, four hundred thirty-one thousand, four hundred thirty-three".