11123212019 has 2 divisors, whose sum is σ = 11123212020. Its totient is φ = 11123212018.

The previous prime is 11123211989. The next prime is 11123212031. The reversal of 11123212019 is 91021232111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11123212019 - 2⁸ = 11123211763 is a prime.

It is a super-2 number, since 2×11123212019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11123211985 and 11123212003.

It is not a weakly prime, because it can be changed into another prime (11123212099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561606009 + 5561606010.

It is an arithmetic number, because the mean of its divisors is an integer number (5561606010).

Almost surely, 2^11123212019 is an apocalyptic number.

11123212019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123212019 is an equidigital number, since it uses as much as digits as its factorization.

11123212019 is an evil number, because the sum of its binary digits is even.

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

The spelling of 11123212019 in words is "eleven billion, one hundred twenty-three million, two hundred twelve thousand, nineteen".