11123101019 has 2 divisors, whose sum is σ = 11123101020. Its totient is φ = 11123101018.

The previous prime is 11123101009. The next prime is 11123101039. The reversal of 11123101019 is 91010132111.

It is a happy number.

It is an a-pointer prime, because the next prime (11123101039) can be obtained adding 11123101019 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11123101019 - 2²⁴ = 11106323803 is a prime.

It is a super-2 number, since 2×11123101019² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11123101009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561550509 + 5561550510.

It is an arithmetic number, because the mean of its divisors is an integer number (5561550510).

Almost surely, 2^11123101019 is an apocalyptic number.

11123101019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123101019 is an equidigital number, since it uses as much as digits as its factorization.

11123101019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 20.

The spelling of 11123101019 in words is "eleven billion, one hundred twenty-three million, one hundred one thousand, nineteen".