1004400321123 has 16 divisors (see below), whose sum is σ = 1371891219840. Its totient is φ = 653441623296.

The previous prime is 1004400321107. The next prime is 1004400321131. The reversal of 1004400321123 is 3211230044001.

It is not a de Polignac number, because 1004400321123 - 2⁴ = 1004400321107 is a prime.

It is a super-2 number, since 2×1004400321123² (a number of 25 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 1004400321123.

It is not an unprimeable number, because it can be changed into a prime (1004400321173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23329038 + ... + 23372051.

It is an arithmetic number, because the mean of its divisors is an integer number (85743201240).

Almost surely, 2^{1004400321123} is an apocalyptic number.

1004400321123 is a deficient number, since it is larger than the sum of its proper divisors (367490898717).

1004400321123 is a wasteful number, since it uses less digits than its factorization.

1004400321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46701266.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1004400321123 its reverse (3211230044001), we get a palindrome (4215630365124).

The spelling of 1004400321123 in words is "one trillion, four billion, four hundred million, three hundred twenty-one thousand, one hundred twenty-three".