11434202121 has 16 divisors (see below), whose sum is σ = 15290208000. Its totient is φ = 7600524288.

The previous prime is 11434202069. The next prime is 11434202137. The reversal of 11434202121 is 12120243411.

It is not a de Polignac number, because 11434202121 - 2¹³ = 11434193929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11434202321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3294375 + ... + 3297843.

It is an arithmetic number, because the mean of its divisors is an integer number (955638000).

Almost surely, 2^11434202121 is an apocalyptic number.

It is an amenable number.

11434202121 is a deficient number, since it is larger than the sum of its proper divisors (3856005879).

11434202121 is a wasteful number, since it uses less digits than its factorization.

11434202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6368.

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

Adding to 11434202121 its reverse (12120243411), we get a palindrome (23554445532).

The spelling of 11434202121 in words is "eleven billion, four hundred thirty-four million, two hundred two thousand, one hundred twenty-one".