1004121210423 has 4 divisors (see below), whose sum is σ = 1338828280568. Its totient is φ = 669414140280.

The previous prime is 1004121210419. The next prime is 1004121210427. The reversal of 1004121210423 is 3240121214001.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1004121210419) and next prime (1004121210427).

It is not a de Polignac number, because 1004121210423 - 2² = 1004121210419 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 1004121210423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004121210427) 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 in 3 ways as a sum of consecutive naturals, for example, 167353535068 + ... + 167353535073.

It is an arithmetic number, because the mean of its divisors is an integer number (334707070142).

Almost surely, 2^{1004121210423} is an apocalyptic number.

1004121210423 is a deficient number, since it is larger than the sum of its proper divisors (334707070145).

1004121210423 is an equidigital number, since it uses as much as digits as its factorization.

1004121210423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334707070144.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1004121210423 its reverse (3240121214001), we get a palindrome (4244242424424).

The spelling of 1004121210423 in words is "one trillion, four billion, one hundred twenty-one million, two hundred ten thousand, four hundred twenty-three".