1002013123123 has 8 divisors (see below), whose sum is σ = 1070344056528. Its totient is φ = 934725410304.

The previous prime is 1002013123121. The next prime is 1002013123207. The reversal of 1002013123123 is 3213213102001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002013123123 - 2¹ = 1002013123121 is a prime.

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 1002013123123.

It is not an unprimeable number, because it can be changed into a prime (1002013123121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260803161 + ... + 260807002.

It is an arithmetic number, because the mean of its divisors is an integer number (133793007066).

Almost surely, 2^{1002013123123} is an apocalyptic number.

1002013123123 is a deficient number, since it is larger than the sum of its proper divisors (68330933405).

1002013123123 is a wasteful number, since it uses less digits than its factorization.

1002013123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521610293.

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

Adding to 1002013123123 its reverse (3213213102001), we get a palindrome (4215226225124).

The spelling of 1002013123123 in words is "one trillion, two billion, thirteen million, one hundred twenty-three thousand, one hundred twenty-three".