23127019 has 2 divisors, whose sum is σ = 23127020. Its totient is φ = 23127018.

The previous prime is 23127017. The next prime is 23127053. The reversal of 23127019 is 91072132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23127019 - 2¹ = 23127017 is a prime.

It is a super-5 number, since 5×23127019⁵ (a number of 38 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

Together with 23127017, it forms a pair of twin primes.

It is equal to p_1455721 and since 23127019 and 1455721 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 23126984 and 23127002.

It is not a weakly prime, because it can be changed into another prime (23127017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11563509 + 11563510.

It is an arithmetic number, because the mean of its divisors is an integer number (11563510).

Almost surely, 2^23127019 is an apocalyptic number.

23127019 is a deficient number, since it is larger than the sum of its proper divisors (1).

23127019 is an equidigital number, since it uses as much as digits as its factorization.

23127019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 23127019 is about 4809.0559364599. The cubic root of 23127019 is about 284.9092519119.

It can be divided in two parts, 231270 and 19, that multiplied together give a triangular number (4394130 = T₂₉₆₄).

The spelling of 23127019 in words is "twenty-three million, one hundred twenty-seven thousand, nineteen".