420023343231 has 24 divisors (see below), whose sum is σ = 639601248000. Its totient is φ = 264875283792.

The previous prime is 420023343221. The next prime is 420023343239. The reversal of 420023343231 is 132343320024.

420023343231 is a `hidden beast` number, since 4 + 2 + 0 + 0 + 2 + 334 + 323 + 1 = 666.

It is not a de Polignac number, because 420023343231 - 2⁵ = 420023343199 is a prime.

It is a super-3 number, since 3×420023343231³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 420023343195 and 420023343204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420023343239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1750951 + ... + 1976328.

It is an arithmetic number, because the mean of its divisors is an integer number (26650052000).

Almost surely, 2^420023343231 is an apocalyptic number.

420023343231 is a deficient number, since it is larger than the sum of its proper divisors (219577904769).

420023343231 is a wasteful number, since it uses less digits than its factorization.

420023343231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727963 (or 3727960 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 420023343231 its reverse (132343320024), we get a palindrome (552366663255).

The spelling of 420023343231 in words is "four hundred twenty billion, twenty-three million, three hundred forty-three thousand, two hundred thirty-one".