321153542434 has 16 divisors (see below), whose sum is σ = 485004314880. Its totient is φ = 159487313040.

The previous prime is 321153542401. The next prime is 321153542443. The reversal of 321153542434 is 434245351123.

It is a junction number, because it is equal to n+sod(n) for n = 321153542393 and 321153542402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125424 + ... + 811195.

It is an arithmetic number, because the mean of its divisors is an integer number (30312769680).

Almost surely, 2^321153542434 is an apocalyptic number.

321153542434 is a deficient number, since it is larger than the sum of its proper divisors (163850772446).

321153542434 is a wasteful number, since it uses less digits than its factorization.

321153542434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937785.

The product of its digits is 172800, while the sum is 37.

Adding to 321153542434 its reverse (434245351123), we get a palindrome (755398893557).

The spelling of 321153542434 in words is "three hundred twenty-one billion, one hundred fifty-three million, five hundred forty-two thousand, four hundred thirty-four".