11423212019 has 2 divisors, whose sum is σ = 11423212020. Its totient is φ = 11423212018.

The previous prime is 11423212001. The next prime is 11423212043. The reversal of 11423212019 is 91021232411.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11423212019 is a prime.

It is a super-2 number, since 2×11423212019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11423212819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711606009 + 5711606010.

It is an arithmetic number, because the mean of its divisors is an integer number (5711606010).

Almost surely, 2^11423212019 is an apocalyptic number.

11423212019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11423212019 is an equidigital number, since it uses as much as digits as its factorization.

11423212019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 11423212019 in words is "eleven billion, four hundred twenty-three million, two hundred twelve thousand, nineteen".