431145252122 has 12 divisors (see below), whose sum is σ = 700292140830. Its totient is φ = 198990116208.

The previous prime is 431145252119. The next prime is 431145252127. The reversal of 431145252122 is 221252541134.

It can be written as a sum of positive squares in 3 ways, for example, as 78842462521 + 352302789601 = 280789^2 + 593551^2 .

It is not an unprimeable number, because it can be changed into a prime (431145252127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 637788497 + ... + 637789172.

Almost surely, 2^431145252122 is an apocalyptic number.

431145252122 is a deficient number, since it is larger than the sum of its proper divisors (269146888708).

431145252122 is a wasteful number, since it uses less digits than its factorization.

431145252122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275577697 (or 1275577684 counting only the distinct ones).

The product of its digits is 19200, while the sum is 32.

Adding to 431145252122 its reverse (221252541134), we get a palindrome (652397793256).

The spelling of 431145252122 in words is "four hundred thirty-one billion, one hundred forty-five million, two hundred fifty-two thousand, one hundred twenty-two".