2111421104329 has 2 divisors, whose sum is σ = 2111421104330. Its totient is φ = 2111421104328.

The previous prime is 2111421104311. The next prime is 2111421104339. The reversal of 2111421104329 is 9234011241112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1710738434304 + 400682670025 = 1307952^2 + 632995^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111421104329 - 2²⁹ = 2110884233417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111421104329.

It is not a weakly prime, because it can be changed into another prime (2111421104339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055710552164 + 1055710552165.

It is an arithmetic number, because the mean of its divisors is an integer number (1055710552165).

Almost surely, 2^{2111421104329} is an apocalyptic number.

It is an amenable number.

2111421104329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111421104329 is an equidigital number, since it uses as much as digits as its factorization.

2111421104329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 2111421104329 in words is "two trillion, one hundred eleven billion, four hundred twenty-one million, one hundred four thousand, three hundred twenty-nine".