531422135122 has 8 divisors (see below), whose sum is σ = 797503452156. Its totient is φ = 265587651072.

The previous prime is 531422135099. The next prime is 531422135137. The reversal of 531422135122 is 221531224135.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 504328645921 + 27093489201 = 710161^2 + 164601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61702863 + ... + 61711474.

Almost surely, 2^531422135122 is an apocalyptic number.

531422135122 is a deficient number, since it is larger than the sum of its proper divisors (266081317034).

531422135122 is a wasteful number, since it uses less digits than its factorization.

531422135122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123416492.

The product of its digits is 14400, while the sum is 31.

Adding to 531422135122 its reverse (221531224135), we get a palindrome (752953359257).

The spelling of 531422135122 in words is "five hundred thirty-one billion, four hundred twenty-two million, one hundred thirty-five thousand, one hundred twenty-two".