420200440031 has 8 divisors (see below), whose sum is σ = 445493700144. Its totient is φ = 394971134080.

The previous prime is 420200440007. The next prime is 420200440067. The reversal of 420200440031 is 130044002024.

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 420200440031 - 2¹⁴ = 420200423647 is a prime.

It is a super-2 number, since 2×420200440031² (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 = 420200439985 and 420200440012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420200440001) 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 7 ways as a sum of consecutive naturals, for example, 15975005 + ... + 16001286.

It is an arithmetic number, because the mean of its divisors is an integer number (55686712518).

Almost surely, 2^420200440031 is an apocalyptic number.

420200440031 is a deficient number, since it is larger than the sum of its proper divisors (25293260113).

420200440031 is a wasteful number, since it uses less digits than its factorization.

420200440031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31977081.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 420200440031 its reverse (130044002024), we get a palindrome (550244442055).

The spelling of 420200440031 in words is "four hundred twenty billion, two hundred million, four hundred forty thousand, thirty-one".