10321123309919 has 2 divisors, whose sum is σ = 10321123309920. Its totient is φ = 10321123309918.

The previous prime is 10321123309897. The next prime is 10321123310059. The reversal of 10321123309919 is 91990332112301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10321123309919 is a prime.

It is a super-2 number, since 2×10321123309919² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10321123309919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10321123300919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5160561654959 + 5160561654960.

It is an arithmetic number, because the mean of its divisors is an integer number (5160561654960).

Almost surely, 2^{10321123309919} is an apocalyptic number.

10321123309919 is a deficient number, since it is larger than the sum of its proper divisors (1).

10321123309919 is an equidigital number, since it uses as much as digits as its factorization.

10321123309919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 10321123309919 in words is "ten trillion, three hundred twenty-one billion, one hundred twenty-three million, three hundred nine thousand, nine hundred nineteen".