1200000001104 has 120 divisors (see below), whose sum is σ = 3393887980392. Its totient is φ = 395767480320.

The previous prime is 1200000001073. The next prime is 1200000001141. The reversal of 1200000001104 is 4011000000021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 783649857600 + 416350143504 = 885240^2 + 645252^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62748664 + ... + 62767784.

Almost surely, 2^{1200000001104} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200000001104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1696943990196).

1200000001104 is an abundant number, since it is smaller than the sum of its proper divisors (2193887979288).

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

1200000001104 is a wasteful number, since it uses less digits than its factorization.

1200000001104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23725 (or 23716 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1200000001104 its reverse (4011000000021), we get a palindrome (5211000001125).

The spelling of 1200000001104 in words is "one trillion, two hundred billion, one thousand, one hundred four".