23143013 has 2 divisors, whose sum is σ = 23143014. Its totient is φ = 23143012.

The previous prime is 23142997. The next prime is 23143031. The reversal of 23143013 is 31034132.

It is a happy number.

Together with next prime (23143031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19070689 + 4072324 = 4367^2 + 2018^2 .

It is a cyclic number.

It is not a de Polignac number, because 23143013 - 2⁴ = 23142997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23142982 and 23143000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23143513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11571506 + 11571507.

It is an arithmetic number, because the mean of its divisors is an integer number (11571507).

Almost surely, 2^23143013 is an apocalyptic number.

It is an amenable number.

23143013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23143013 is an equidigital number, since it uses as much as digits as its factorization.

23143013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 23143013 is about 4810.7185533972. The cubic root of 23143013 is about 284.9749152027.

Adding to 23143013 its reverse (31034132), we get a palindrome (54177145).

The spelling of 23143013 in words is "twenty-three million, one hundred forty-three thousand, thirteen".