12523121345025 has 96 divisors (see below), whose sum is σ = 23898472899840. Its totient is φ = 6424318656000.

The previous prime is 12523121344973. The next prime is 12523121345057. The reversal of 12523121345025 is 52054312132521.

12523121345025 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 3 + 12 + 134 + 502 + 5 = 666.

It is not a de Polignac number, because 12523121345025 - 2¹⁶ = 12523121279489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1221742 + ... + 5151591.

It is an arithmetic number, because the mean of its divisors is an integer number (248942426040).

Almost surely, 2^{12523121345025} is an apocalyptic number.

12523121345025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12523121345025 is a deficient number, since it is larger than the sum of its proper divisors (11375351554815).

12523121345025 is a wasteful number, since it uses less digits than its factorization.

12523121345025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373464 (or 6373453 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 12523121345025 its reverse (52054312132521), we get a palindrome (64577433477546).

The spelling of 12523121345025 in words is "twelve trillion, five hundred twenty-three billion, one hundred twenty-one million, three hundred forty-five thousand, twenty-five".