11400204023121 has 16 divisors (see below), whose sum is σ = 16033689907200. Its totient is φ = 7185097255248.

The previous prime is 11400204023077. The next prime is 11400204023147. The reversal of 11400204023121 is 12132040200411.

It is not a de Polignac number, because 11400204023121 - 2³⁴ = 11383024153937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11400204023521) 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, 208744701 + ... + 208799306.

It is an arithmetic number, because the mean of its divisors is an integer number (1002105619200).

Almost surely, 2^{11400204023121} is an apocalyptic number.

It is an amenable number.

11400204023121 is a deficient number, since it is larger than the sum of its proper divisors (4633485884079).

11400204023121 is a wasteful number, since it uses less digits than its factorization.

11400204023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417544508.

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

Adding to 11400204023121 its reverse (12132040200411), we get a palindrome (23532244223532).

The spelling of 11400204023121 in words is "eleven trillion, four hundred billion, two hundred four million, twenty-three thousand, one hundred twenty-one".