531321122 has 16 divisors (see below), whose sum is σ = 836775360. Its totient is φ = 252669648.

The previous prime is 531321113. The next prime is 531321169. The reversal of 531321122 is 221123135.

It is a junction number, because it is equal to n+sod(n) for n = 531321094 and 531321103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64478 + ... + 72249.

It is an arithmetic number, because the mean of its divisors is an integer number (52298460).

Almost surely, 2^531321122 is an apocalyptic number.

531321122 is a deficient number, since it is larger than the sum of its proper divisors (305454238).

531321122 is a wasteful number, since it uses less digits than its factorization.

531321122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136825.

The product of its digits is 360, while the sum is 20.

The square root of 531321122 is about 23050.4039443998. The cubic root of 531321122 is about 809.9390910863.

Adding to 531321122 its reverse (221123135), we get a palindrome (752444257).

The spelling of 531321122 in words is "five hundred thirty-one million, three hundred twenty-one thousand, one hundred twenty-two".