12523444225140 has 48 divisors (see below), whose sum is σ = 35220118070592. Its totient is φ = 3324873294336.

The previous prime is 12523444225099. The next prime is 12523444225141. The reversal of 12523444225140 is 4152244432521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523444225141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459731029 + ... + 459758268.

It is an arithmetic number, because the mean of its divisors is an integer number (733752459804).

Almost surely, 2^{12523444225140} is an apocalyptic number.

12523444225140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12523444225140 is an abundant number, since it is smaller than the sum of its proper divisors (22696673845452).

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

12523444225140 is a wasteful number, since it uses less digits than its factorization.

12523444225140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919489536 (or 919489534 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 39.

Adding to 12523444225140 its reverse (4152244432521), we get a palindrome (16675688657661).

The spelling of 12523444225140 in words is "twelve trillion, five hundred twenty-three billion, four hundred forty-four million, two hundred twenty-five thousand, one hundred forty".