11112000121 has 4 divisors (see below), whose sum is σ = 11113830544. Its totient is φ = 11110169700.

The previous prime is 11112000083. The next prime is 11112000169. The reversal of 11112000121 is 12100021111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11112000121 - 2¹⁹ = 11111475833 is a prime.

It is a super-3 number, since 3×11112000121³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112000098 and 11112000107.

It is not an unprimeable number, because it can be changed into a prime (11112000181) 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, 906075 + ... + 918256.

It is an arithmetic number, because the mean of its divisors is an integer number (2778457636).

Almost surely, 2^11112000121 is an apocalyptic number.

It is an amenable number.

11112000121 is a deficient number, since it is larger than the sum of its proper divisors (1830423).

11112000121 is an equidigital number, since it uses as much as digits as its factorization.

11112000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830422.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11112000121 its reverse (12100021111), we get a palindrome (23212021232).

The spelling of 11112000121 in words is "eleven billion, one hundred twelve million, one hundred twenty-one", and thus it is an aban number.