421504013031 has 16 divisors (see below), whose sum is σ = 582806373600. Its totient is φ = 270649548288.

The previous prime is 421504013027. The next prime is 421504013059. The reversal of 421504013031 is 130310405124.

It is a happy number.

It is not a de Polignac number, because 421504013031 - 2² = 421504013027 is a prime.

It is a super-2 number, since 2×421504013031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421504012992 and 421504013010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421504013011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5887246 + ... + 5958411.

It is an arithmetic number, because the mean of its divisors is an integer number (36425398350).

Almost surely, 2^421504013031 is an apocalyptic number.

421504013031 is a deficient number, since it is larger than the sum of its proper divisors (161302360569).

421504013031 is a wasteful number, since it uses less digits than its factorization.

421504013031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11846098.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 421504013031 its reverse (130310405124), we get a palindrome (551814418155).

The spelling of 421504013031 in words is "four hundred twenty-one billion, five hundred four million, thirteen thousand, thirty-one".