23119513 has 2 divisors, whose sum is σ = 23119514. Its totient is φ = 23119512.

The previous prime is 23119469. The next prime is 23119519. The reversal of 23119513 is 31591132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19289664 + 3829849 = 4392^2 + 1957^2 .

It is a cyclic number.

It is not a de Polignac number, because 23119513 - 2¹³ = 23111321 is a prime.

It is not a weakly prime, because it can be changed into another prime (23119519) 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 as a sum of consecutive naturals, namely, 11559756 + 11559757.

It is an arithmetic number, because the mean of its divisors is an integer number (11559757).

Almost surely, 2^23119513 is an apocalyptic number.

It is an amenable number.

23119513 is a deficient number, since it is larger than the sum of its proper divisors (1).

23119513 is an equidigital number, since it uses as much as digits as its factorization.

23119513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 25.

The square root of 23119513 is about 4808.2754704780. The cubic root of 23119513 is about 284.8784256268.

It can be divided in two parts, 23119 and 513, that added together give a palindrome (23632).

The spelling of 23119513 in words is "twenty-three million, one hundred nineteen thousand, five hundred thirteen".