23123243145 has 16 divisors (see below), whose sum is σ = 37211049792. Its totient is φ = 12261109440.

The previous prime is 23123243051. The next prime is 23123243173. The reversal of 23123243145 is 54134232132.

It is not a de Polignac number, because 23123243145 - 2¹² = 23123239049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4452751 + ... + 4457940.

It is an arithmetic number, because the mean of its divisors is an integer number (2325690612).

Almost surely, 2^23123243145 is an apocalyptic number.

It is an amenable number.

23123243145 is a deficient number, since it is larger than the sum of its proper divisors (14087806647).

23123243145 is a wasteful number, since it uses less digits than its factorization.

23123243145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910872.

The product of its digits is 17280, while the sum is 30.

Adding to 23123243145 its reverse (54134232132), we get a palindrome (77257475277).

The spelling of 23123243145 in words is "twenty-three billion, one hundred twenty-three million, two hundred forty-three thousand, one hundred forty-five".