321255112031153 has 4 divisors (see below), whose sum is σ = 328090327180800. Its totient is φ = 314419896881508.

The previous prime is 321255112031141. The next prime is 321255112031171. The reversal of 321255112031153 is 351130211552123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321255112031153 - 2³⁴ = 321237932161969 is a prime.

It is a super-2 number, since 2×321255112031153² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (321255112031053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3417607574753 + ... + 3417607574846.

It is an arithmetic number, because the mean of its divisors is an integer number (82022581795200).

Almost surely, 2^{321255112031153} is an apocalyptic number.

It is an amenable number.

321255112031153 is a deficient number, since it is larger than the sum of its proper divisors (6835215149647).

321255112031153 is an equidigital number, since it uses as much as digits as its factorization.

321255112031153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835215149646.

The product of its (nonzero) digits is 27000, while the sum is 35.

Adding to 321255112031153 its reverse (351130211552123), we get a palindrome (672385323583276).

The spelling of 321255112031153 in words is "three hundred twenty-one trillion, two hundred fifty-five billion, one hundred twelve million, thirty-one thousand, one hundred fifty-three".