23851013 has 2 divisors, whose sum is σ = 23851014. Its totient is φ = 23851012.

The previous prime is 23850979. The next prime is 23851019. The reversal of 23851013 is 31015832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23493409 + 357604 = 4847^2 + 598^2 .

It is a cyclic number.

It is not a de Polignac number, because 23851013 - 2¹⁰ = 23849989 is a prime.

It is a super-2 number, since 2×23851013² = 1137741642252338, which contains 22 as substring.

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 23851013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23851019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11925506 + 11925507.

It is an arithmetic number, because the mean of its divisors is an integer number (11925507).

Almost surely, 2^23851013 is an apocalyptic number.

It is an amenable number.

23851013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23851013 is an equidigital number, since it uses as much as digits as its factorization.

23851013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 23851013 is about 4883.7498912209. The cubic root of 23851013 is about 287.8517956931.

Adding to 23851013 its reverse (31015832), we get a palindrome (54866845).

The spelling of 23851013 in words is "twenty-three million, eight hundred fifty-one thousand, thirteen".