321012353 has 4 divisors (see below), whose sum is σ = 337907760. Its totient is φ = 304116948.

The previous prime is 321012337. The next prime is 321012359. The reversal of 321012353 is 353210123.

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 321012353 - 2⁴ = 321012337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321012359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8447675 + ... + 8447712.

It is an arithmetic number, because the mean of its divisors is an integer number (84476940).

Almost surely, 2^321012353 is an apocalyptic number.

It is an amenable number.

321012353 is a deficient number, since it is larger than the sum of its proper divisors (16895407).

321012353 is a wasteful number, since it uses less digits than its factorization.

321012353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16895406.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 321012353 is about 17916.8176024650. The cubic root of 321012353 is about 684.7109107446.

Adding to 321012353 its reverse (353210123), we get a palindrome (674222476).

The spelling of 321012353 in words is "three hundred twenty-one million, twelve thousand, three hundred fifty-three".