11121322019 has 4 divisors (see below), whose sum is σ = 11124972600. Its totient is φ = 11117671440.

The previous prime is 11121322007. The next prime is 11121322033. The reversal of 11121322019 is 91022312111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11121322019 - 2⁸ = 11121321763 is a prime.

It is a super-2 number, since 2×11121322019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121321985 and 11121322003.

It is not an unprimeable number, because it can be changed into a prime (11121322039) 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, 1820717 + ... + 1826814.

It is an arithmetic number, because the mean of its divisors is an integer number (2781243150).

Almost surely, 2^11121322019 is an apocalyptic number.

11121322019 is a deficient number, since it is larger than the sum of its proper divisors (3650581).

11121322019 is an equidigital number, since it uses as much as digits as its factorization.

11121322019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650580.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 11121322019 in words is "eleven billion, one hundred twenty-one million, three hundred twenty-two thousand, nineteen".