23142013 has 4 divisors (see below), whose sum is σ = 23167548. Its totient is φ = 23116480.

The previous prime is 23142011. The next prime is 23142017. The reversal of 23142013 is 31024132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7634169 + 15507844 = 2763^2 + 3938^2 .

It is a cyclic number.

It is not a de Polignac number, because 23142013 - 2¹ = 23142011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23142011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11356 + ... + 13237.

It is an arithmetic number, because the mean of its divisors is an integer number (5791887).

Almost surely, 2^23142013 is an apocalyptic number.

It is an amenable number.

23142013 is a deficient number, since it is larger than the sum of its proper divisors (25535).

23142013 is an equidigital number, since it uses as much as digits as its factorization.

23142013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25534.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23142013 is about 4810.6146176970. The cubic root of 23142013 is about 284.9708105942.

Adding to 23142013 its reverse (31024132), we get a palindrome (54166145).

The spelling of 23142013 in words is "twenty-three million, one hundred forty-two thousand, thirteen".