321153011225 has 12 divisors (see below), whose sum is σ = 398288585280. Its totient is φ = 256884440400.

The previous prime is 321153011219. The next prime is 321153011237. The reversal of 321153011225 is 522110351123.

It is not a de Polignac number, because 321153011225 - 2⁶ = 321153011161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321153011194 and 321153011203.

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 11 ways as a sum of consecutive naturals, for example, 776045 + ... + 1115594.

It is an arithmetic number, because the mean of its divisors is an integer number (33190715440).

Almost surely, 2^321153011225 is an apocalyptic number.

It is an amenable number.

321153011225 is a deficient number, since it is larger than the sum of its proper divisors (77135574055).

321153011225 is a wasteful number, since it uses less digits than its factorization.

321153011225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898440 (or 1898435 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 321153011225 its reverse (522110351123), we get a palindrome (843263362348).

The spelling of 321153011225 in words is "three hundred twenty-one billion, one hundred fifty-three million, eleven thousand, two hundred twenty-five".