420253531433 has 8 divisors (see below), whose sum is σ = 444701840256. Its totient is φ = 396319924000.

The previous prime is 420253531417. The next prime is 420253531447. The reversal of 420253531433 is 334135352024.

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 420253531433 - 2⁴ = 420253531417 is a prime.

It is a super-2 number, since 2×420253531433² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420253531393 and 420253531402.

It is not an unprimeable number, because it can be changed into a prime (420253501433) 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, 128673668 + ... + 128676933.

It is an arithmetic number, because the mean of its divisors is an integer number (55587730032).

Almost surely, 2^420253531433 is an apocalyptic number.

It is an amenable number.

420253531433 is a deficient number, since it is larger than the sum of its proper divisors (24448308823).

420253531433 is a wasteful number, since it uses less digits than its factorization.

420253531433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257350695.

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 420253531433 its reverse (334135352024), we get a palindrome (754388883457).

The spelling of 420253531433 in words is "four hundred twenty billion, two hundred fifty-three million, five hundred thirty-one thousand, four hundred thirty-three".