321318450029 has 4 divisors (see below), whose sum is σ = 321627708480. Its totient is φ = 321009191580.

The previous prime is 321318449983. The next prime is 321318450059. The reversal of 321318450029 is 920054813123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 920054813123 = 43 ⋅21396623561.

It is a cyclic number.

It is not a de Polignac number, because 321318450029 - 2¹² = 321318445933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321318449974 and 321318450001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321318450059) 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, 154627667 + ... + 154629744.

It is an arithmetic number, because the mean of its divisors is an integer number (80406927120).

Almost surely, 2^321318450029 is an apocalyptic number.

It is an amenable number.

321318450029 is a deficient number, since it is larger than the sum of its proper divisors (309258451).

321318450029 is a wasteful number, since it uses less digits than its factorization.

321318450029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309258450.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 321318450029 in words is "three hundred twenty-one billion, three hundred eighteen million, four hundred fifty thousand, twenty-nine".