23153223013 has 4 divisors (see below), whose sum is σ = 23532784108. Its totient is φ = 22773661920.

The previous prime is 23153222957. The next prime is 23153223077. The reversal of 23153223013 is 31032235132.

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 12785503329 + 10367719684 = 113073^2 + 101822^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23153223013 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 (23153223413) 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, 189780456 + ... + 189780577.

It is an arithmetic number, because the mean of its divisors is an integer number (5883196027).

Almost surely, 2^23153223013 is an apocalyptic number.

It is an amenable number.

23153223013 is a deficient number, since it is larger than the sum of its proper divisors (379561095).

23153223013 is an equidigital number, since it uses as much as digits as its factorization.

23153223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379561094.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 23153223013 its reverse (31032235132), we get a palindrome (54185458145).

The spelling of 23153223013 in words is "twenty-three billion, one hundred fifty-three million, two hundred twenty-three thousand, thirteen".