23145231612 has 12 divisors (see below), whose sum is σ = 54005540456. Its totient is φ = 7715077200.

The previous prime is 23145231611. The next prime is 23145231623. The reversal of 23145231612 is 21613254132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 23145231612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23145231611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964384639 + ... + 964384662.

Almost surely, 2^23145231612 is an apocalyptic number.

It is an amenable number.

23145231612 is an abundant number, since it is smaller than the sum of its proper divisors (30860308844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23145231612 is a wasteful number, since it uses less digits than its factorization.

23145231612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928769308 (or 1928769306 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

Adding to 23145231612 its reverse (21613254132), we get a palindrome (44758485744).

The spelling of 23145231612 in words is "twenty-three billion, one hundred forty-five million, two hundred thirty-one thousand, six hundred twelve".