23145145311 has 32 divisors (see below), whose sum is σ = 32164816320. Its totient is φ = 14786150400.

The previous prime is 23145145301. The next prime is 23145145319. The reversal of 23145145311 is 11354154132.

It is not a de Polignac number, because 23145145311 - 2⁷ = 23145145183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145145319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10092681 + ... + 10094973.

It is an arithmetic number, because the mean of its divisors is an integer number (1005150510).

Almost surely, 2^23145145311 is an apocalyptic number.

23145145311 is a deficient number, since it is larger than the sum of its proper divisors (9019671009).

23145145311 is a wasteful number, since it uses less digits than its factorization.

23145145311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147.

The product of its digits is 7200, while the sum is 30.

Adding to 23145145311 its reverse (11354154132), we get a palindrome (34499299443).

The spelling of 23145145311 in words is "twenty-three billion, one hundred forty-five million, one hundred forty-five thousand, three hundred eleven".