11121002019 has 6 divisors (see below), whose sum is σ = 16063669596. Its totient is φ = 7414001340.

The previous prime is 11121002017. The next prime is 11121002023. The reversal of 11121002019 is 91020012111.

It is a happy number.

It is not a de Polignac number, because 11121002019 - 2¹ = 11121002017 is a prime.

It is a super-2 number, since 2×11121002019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121001992 and 11121002010.

It is not an unprimeable number, because it can be changed into a prime (11121002017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617833437 + ... + 617833454.

It is an arithmetic number, because the mean of its divisors is an integer number (2677278266).

Almost surely, 2^11121002019 is an apocalyptic number.

11121002019 is a deficient number, since it is larger than the sum of its proper divisors (4942667577).

11121002019 is a wasteful number, since it uses less digits than its factorization.

11121002019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235666897 (or 1235666894 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 11121002019 in words is "eleven billion, one hundred twenty-one million, two thousand, nineteen".