321023350453 has 16 divisors (see below), whose sum is σ = 355955741680. Its totient is φ = 287593929216.

The previous prime is 321023350421. The next prime is 321023350463. The reversal of 321023350453 is 354053320123.

It can be written as a sum of positive squares in 8 ways, for example, as 393347889 + 320630002564 = 19833^2 + 566242^2 .

It is a cyclic number.

It is not a de Polignac number, because 321023350453 - 2⁵ = 321023350421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321023350463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649608 + ... + 1031521.

It is an arithmetic number, because the mean of its divisors is an integer number (22247233855).

Almost surely, 2^321023350453 is an apocalyptic number.

It is an amenable number.

321023350453 is a deficient number, since it is larger than the sum of its proper divisors (34932391227).

321023350453 is a wasteful number, since it uses less digits than its factorization.

321023350453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681576.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 321023350453 its reverse (354053320123), we get a palindrome (675076670576).

The spelling of 321023350453 in words is "three hundred twenty-one billion, twenty-three million, three hundred fifty thousand, four hundred fifty-three".