431431540134 has 32 divisors (see below), whose sum is σ = 986170415616. Its totient is φ = 123261006720.

The previous prime is 431431540121. The next prime is 431431540157. The reversal of 431431540134 is 431045134134.

It is a super-2 number, since 2×431431540134² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 431431540095 and 431431540104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 867439 + ... + 1270949.

It is an arithmetic number, because the mean of its divisors is an integer number (30817825488).

Almost surely, 2^431431540134 is an apocalyptic number.

431431540134 is an abundant number, since it is smaller than the sum of its proper divisors (554738875482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

431431540134 is a wasteful number, since it uses less digits than its factorization.

431431540134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428980.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 431431540134 its reverse (431045134134), we get a palindrome (862476674268).

The spelling of 431431540134 in words is "four hundred thirty-one billion, four hundred thirty-one million, five hundred forty thousand, one hundred thirty-four".