431431523134 has 4 divisors (see below), whose sum is σ = 647147284704. Its totient is φ = 215715761566.

The previous prime is 431431523099. The next prime is 431431523141. The reversal of 431431523134 is 431325134134.

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

It is a super-2 number, since 2×431431523134² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431431523134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107857880782 + ... + 107857880785.

It is an arithmetic number, because the mean of its divisors is an integer number (161786821176).

Almost surely, 2^431431523134 is an apocalyptic number.

431431523134 is a deficient number, since it is larger than the sum of its proper divisors (215715761570).

431431523134 is a wasteful number, since it uses less digits than its factorization.

431431523134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215715761569.

The product of its digits is 51840, while the sum is 34.

Adding to 431431523134 its reverse (431325134134), we get a palindrome (862756657268).

The spelling of 431431523134 in words is "four hundred thirty-one billion, four hundred thirty-one million, five hundred twenty-three thousand, one hundred thirty-four".