1002111004123 has 2 divisors, whose sum is σ = 1002111004124. Its totient is φ = 1002111004122.

The previous prime is 1002111004043. The next prime is 1002111004127. The reversal of 1002111004123 is 3214001112001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002111004123 - 2⁹ = 1002111003611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002111004097 and 1002111004106.

It is not a weakly prime, because it can be changed into another prime (1002111004127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501055502061 + 501055502062.

It is an arithmetic number, because the mean of its divisors is an integer number (501055502062).

Almost surely, 2^{1002111004123} is an apocalyptic number.

1002111004123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002111004123 is an equidigital number, since it uses as much as digits as its factorization.

1002111004123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1002111004123 its reverse (3214001112001), we get a palindrome (4216112116124).

The spelling of 1002111004123 in words is "one trillion, two billion, one hundred eleven million, four thousand, one hundred twenty-three".