321012030310019 has 4 divisors (see below), whose sum is σ = 321014605266696. Its totient is φ = 321009455353344.

The previous prime is 321012030310009. The next prime is 321012030310057. The reversal of 321012030310019 is 910013030210123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321012030310019 - 2¹⁶ = 321012030244483 is a prime.

It is a super-2 number, since 2×321012030310019² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321012030310019.

It is not an unprimeable number, because it can be changed into a prime (321012030310009) 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, 1287291329 + ... + 1287540674.

It is an arithmetic number, because the mean of its divisors is an integer number (80253651316674).

Almost surely, 2^{321012030310019} is an apocalyptic number.

321012030310019 is a deficient number, since it is larger than the sum of its proper divisors (2574956677).

321012030310019 is a wasteful number, since it uses less digits than its factorization.

321012030310019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574956676.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 321012030310019 in words is "three hundred twenty-one trillion, twelve billion, thirty million, three hundred ten thousand, nineteen".