531431230242122 has 32 divisors (see below), whose sum is σ = 913329949553280. Its totient is φ = 227180036851200.

The previous prime is 531431230242113. The next prime is 531431230242181. The reversal of 531431230242122 is 221242032134135.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154463129 + ... + 157866147.

It is an arithmetic number, because the mean of its divisors is an integer number (28541560923540).

Almost surely, 2^{531431230242122} is an apocalyptic number.

531431230242122 is a deficient number, since it is larger than the sum of its proper divisors (381898719311158).

531431230242122 is a wasteful number, since it uses less digits than its factorization.

531431230242122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431246.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 531431230242122 its reverse (221242032134135), we get a palindrome (752673262376257).

The spelling of 531431230242122 in words is "five hundred thirty-one trillion, four hundred thirty-one billion, two hundred thirty million, two hundred forty-two thousand, one hundred twenty-two".