1000400120104 has 64 divisors (see below), whose sum is σ = 2359293402240. Its totient is φ = 386316994560.

The previous prime is 1000400120033. The next prime is 1000400120129. The reversal of 1000400120104 is 4010210040001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7116349 + ... + 7255564.

It is an arithmetic number, because the mean of its divisors is an integer number (36863959410).

Almost surely, 2^{1000400120104} is an apocalyptic number.

1000400120104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1000400120104 is an abundant number, since it is smaller than the sum of its proper divisors (1358893282136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000400120104 is a wasteful number, since it uses less digits than its factorization.

1000400120104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14372050 (or 14372046 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000400120104 its reverse (4010210040001), we get a palindrome (5010610160105).

The spelling of 1000400120104 in words is "one trillion, four hundred million, one hundred twenty thousand, one hundred four".