421432410031 has 4 divisors (see below), whose sum is σ = 421897055272. Its totient is φ = 420967764792.

The previous prime is 421432410023. The next prime is 421432410043. The reversal of 421432410031 is 130014234124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421432410031 - 2³ = 421432410023 is a prime.

It is a super-2 number, since 2×421432410031² (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 = 421432409978 and 421432410005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421432410631) 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 3 ways as a sum of consecutive naturals, for example, 232321260 + ... + 232323073.

It is an arithmetic number, because the mean of its divisors is an integer number (105474263818).

Almost surely, 2^421432410031 is an apocalyptic number.

421432410031 is a deficient number, since it is larger than the sum of its proper divisors (464645241).

421432410031 is an equidigital number, since it uses as much as digits as its factorization.

421432410031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464645240.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 421432410031 its reverse (130014234124), we get a palindrome (551446644155).

The spelling of 421432410031 in words is "four hundred twenty-one billion, four hundred thirty-two million, four hundred ten thousand, thirty-one".