420234335523 has 32 divisors (see below), whose sum is σ = 630828000000. Its totient is φ = 276452485056.

The previous prime is 420234335503. The next prime is 420234335527. The reversal of 420234335523 is 325533432024.

It is a happy number.

420234335523 is a `hidden beast` number, since 42 + 0 + 2 + 34 + 33 + 552 + 3 = 666.

It is not a de Polignac number, because 420234335523 - 2³² = 415939368227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420234335527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1023868 + ... + 1374326.

It is an arithmetic number, because the mean of its divisors is an integer number (19713375000).

Almost surely, 2^420234335523 is an apocalyptic number.

420234335523 is a deficient number, since it is larger than the sum of its proper divisors (210593664477).

420234335523 is a wasteful number, since it uses less digits than its factorization.

420234335523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351056 (or 351050 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 36.

Adding to 420234335523 its reverse (325533432024), we get a palindrome (745767767547).

The spelling of 420234335523 in words is "four hundred twenty billion, two hundred thirty-four million, three hundred thirty-five thousand, five hundred twenty-three".