321310012123 has 2 divisors, whose sum is σ = 321310012124. Its totient is φ = 321310012122.

The previous prime is 321310012117. The next prime is 321310012129. The reversal of 321310012123 is 321210013123.

It is a balanced prime because it is at equal distance from previous prime (321310012117) and next prime (321310012129).

It is a cyclic number.

It is not a de Polignac number, because 321310012123 - 2²¹ = 321307914971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321310012123.

It is not a weakly prime, because it can be changed into another prime (321310012129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160655006061 + 160655006062.

It is an arithmetic number, because the mean of its divisors is an integer number (160655006062).

Almost surely, 2^321310012123 is an apocalyptic number.

321310012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

321310012123 is an equidigital number, since it uses as much as digits as its factorization.

321310012123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321310012123 its reverse (321210013123), we get a palindrome (642520025246).

It can be divided in two parts, 3213100 and 12123, that added together give a palindrome (3225223).

The spelling of 321310012123 in words is "three hundred twenty-one billion, three hundred ten million, twelve thousand, one hundred twenty-three".