23112019 has 16 divisors (see below), whose sum is σ = 27658240. Its totient is φ = 18895680.

The previous prime is 23112007. The next prime is 23112029. The reversal of 23112019 is 91021132.

It is a cyclic number.

It is not a de Polignac number, because 23112019 - 2⁹ = 23111507 is a prime.

It is a super-2 number, since 2×23112019² = 1068330844512722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23111987 and 23112005.

It is not an unprimeable number, because it can be changed into a prime (23112029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15112 + ... + 16570.

It is an arithmetic number, because the mean of its divisors is an integer number (1728640).

Almost surely, 2^23112019 is an apocalyptic number.

23112019 is a deficient number, since it is larger than the sum of its proper divisors (4546221).

23112019 is a wasteful number, since it uses less digits than its factorization.

23112019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 23112019 is about 4807.4961258435. The cubic root of 23112019 is about 284.8476419676.

The spelling of 23112019 in words is "twenty-three million, one hundred twelve thousand, nineteen".