11121007 has 4 divisors (see below), whose sum is σ = 11504520. Its totient is φ = 10737496.

The previous prime is 11120981. The next prime is 11121037. The reversal of 11121007 is 70012111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70012111 = 13 ⋅5385547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11121007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121037) 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, 191713 + ... + 191770.

It is an arithmetic number, because the mean of its divisors is an integer number (2876130).

Almost surely, 2^11121007 is an apocalyptic number.

11121007 is a deficient number, since it is larger than the sum of its proper divisors (383513).

11121007 is an equidigital number, since it uses as much as digits as its factorization.

11121007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383512.

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 11121007 is about 3334.8173863047. The cubic root of 11121007 is about 223.2105433777.

Adding to 11121007 its reverse (70012111), we get a palindrome (81133118).

The spelling of 11121007 in words is "eleven million, one hundred twenty-one thousand, seven".