11310032121 has 16 divisors (see below), whose sum is σ = 15763700736. Its totient is φ = 7199359376.

The previous prime is 11310032057. The next prime is 11310032137. The reversal of 11310032121 is 12123001311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11310032121 - 2⁶ = 11310032057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11310032121.

It is not an unprimeable number, because it can be changed into a prime (11310032141) 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, 106725 + ... + 184418.

It is an arithmetic number, because the mean of its divisors is an integer number (985231296).

Almost surely, 2^11310032121 is an apocalyptic number.

It is an amenable number.

11310032121 is a deficient number, since it is larger than the sum of its proper divisors (4453668615).

11310032121 is a wasteful number, since it uses less digits than its factorization.

11310032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291732.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11310032121 its reverse (12123001311), we get a palindrome (23433033432).

The spelling of 11310032121 in words is "eleven billion, three hundred ten million, thirty-two thousand, one hundred twenty-one".