420123532040031 has 16 divisors (see below), whose sum is σ = 565361560494720. Its totient is φ = 277490904780960.

The previous prime is 420123532039997. The next prime is 420123532040039. The reversal of 420123532040031 is 130040235321024.

It is not a de Polignac number, because 420123532040031 - 2¹¹ = 420123532037983 is a prime.

It is a super-2 number, since 2×420123532040031² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420123532040039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871713921 + ... + 872195738.

It is an arithmetic number, because the mean of its divisors is an integer number (35335097530920).

Almost surely, 2^{420123532040031} is an apocalyptic number.

420123532040031 is a deficient number, since it is larger than the sum of its proper divisors (145238028454689).

420123532040031 is a wasteful number, since it uses less digits than its factorization.

420123532040031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743910406.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 420123532040031 its reverse (130040235321024), we get a palindrome (550163767361055).

The spelling of 420123532040031 in words is "four hundred twenty trillion, one hundred twenty-three billion, five hundred thirty-two million, forty thousand, thirty-one".