321532053242 has 16 divisors (see below), whose sum is σ = 491418307080. Its totient is φ = 157726201152.

The previous prime is 321532053229. The next prime is 321532053251. The reversal of 321532053242 is 242350235123.

It can be written as a sum of positive squares in 4 ways, for example, as 287790404521 + 33741648721 = 536461^2 + 183689^2 .

It is a super-2 number, since 2×321532053242² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321532053199 and 321532053208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3442268 + ... + 3534440.

Almost surely, 2^321532053242 is an apocalyptic number.

321532053242 is a deficient number, since it is larger than the sum of its proper divisors (169886253838).

321532053242 is a wasteful number, since it uses less digits than its factorization.

321532053242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125137.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 321532053242 its reverse (242350235123), we get a palindrome (563882288365).

The spelling of 321532053242 in words is "three hundred twenty-one billion, five hundred thirty-two million, fifty-three thousand, two hundred forty-two".