1121204434401 has 16 divisors (see below), whose sum is σ = 1733262894720. Its totient is φ = 714970943280.

The previous prime is 1121204434373. The next prime is 1121204434403. The reversal of 1121204434401 is 1044344021211.

1121204434401 is a `hidden beast` number, since 1 + 1 + 21 + 204 + 4 + 34 + 401 = 666.

It is not a de Polignac number, because 1121204434401 - 2³⁸ = 846326527457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1121204434403) 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, 902740470 + ... + 902741711.

It is an arithmetic number, because the mean of its divisors is an integer number (108328930920).

Almost surely, 2^{1121204434401} is an apocalyptic number.

It is an amenable number.

1121204434401 is a deficient number, since it is larger than the sum of its proper divisors (612058460319).

1121204434401 is a wasteful number, since it uses less digits than its factorization.

1121204434401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805482213 (or 1805482207 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1121204434401 its reverse (1044344021211), we get a palindrome (2165548455612).

The spelling of 1121204434401 in words is "one trillion, one hundred twenty-one billion, two hundred four million, four hundred thirty-four thousand, four hundred one".