11121023201 has 4 divisors (see below), whose sum is σ = 11122058004. Its totient is φ = 11119988400.

The previous prime is 11121023191. The next prime is 11121023203. The reversal of 11121023201 is 10232012111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10232012111 = 41 ⋅249561271.

It can be written as a sum of positive squares in 2 ways, for example, as 1283358976 + 9837664225 = 35824^2 + 99185^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121023201 - 2²⁶ = 11053914337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121023203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501110 + ... + 522831.

It is an arithmetic number, because the mean of its divisors is an integer number (2780514501).

Almost surely, 2^11121023201 is an apocalyptic number.

It is an amenable number.

11121023201 is a deficient number, since it is larger than the sum of its proper divisors (1034803).

11121023201 is a wasteful number, since it uses less digits than its factorization.

11121023201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034802.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11121023201 its reverse (10232012111), we get a palindrome (21353035312).

The spelling of 11121023201 in words is "eleven billion, one hundred twenty-one million, twenty-three thousand, two hundred one".