23145305542312 has 16 divisors (see below), whose sum is σ = 43398767016000. Its totient is φ = 11572301004720.

The previous prime is 23145305542301. The next prime is 23145305542319. The reversal of 23145305542312 is 21324550354132.

It is not an unprimeable number, because it can be changed into a prime (23145305542319) 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, 43691062 + ... + 44217637.

It is an arithmetic number, because the mean of its divisors is an integer number (2712422938500).

Almost surely, 2^{23145305542312} is an apocalyptic number.

It is an amenable number.

23145305542312 is a deficient number, since it is larger than the sum of its proper divisors (20253461473688).

23145305542312 is a wasteful number, since it uses less digits than its factorization.

23145305542312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87941616 (or 87941612 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 23145305542312 its reverse (21324550354132), we get a palindrome (44469855896444).

The spelling of 23145305542312 in words is "twenty-three trillion, one hundred forty-five billion, three hundred five million, five hundred forty-two thousand, three hundred twelve".