11001230231121 has 16 divisors (see below), whose sum is σ = 17551820312320. Its totient is φ = 6769987834320.

The previous prime is 11001230231063. The next prime is 11001230231219. The reversal of 11001230231121 is 12113203210011.

11001230231121 is a `hidden beast` number, since 1 + 100 + 1 + 230 + 2 + 311 + 21 = 666.

It is not a de Polignac number, because 11001230231121 - 2⁹ = 11001230230609 is a prime.

It is a super-2 number, since 2×11001230231121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11001230231094 and 11001230231103.

It is not an unprimeable number, because it can be changed into a prime (11001230236121) 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, 15671267785 + ... + 15671268486.

It is an arithmetic number, because the mean of its divisors is an integer number (1096988769520).

Almost surely, 2^{11001230231121} is an apocalyptic number.

It is an amenable number.

11001230231121 is a deficient number, since it is larger than the sum of its proper divisors (6550590081199).

11001230231121 is a wasteful number, since it uses less digits than its factorization.

11001230231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31342536293 (or 31342536287 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11001230231121 its reverse (12113203210011), we get a palindrome (23114433441132).

The spelling of 11001230231121 in words is "eleven trillion, one billion, two hundred thirty million, two hundred thirty-one thousand, one hundred twenty-one".