12520325112040 has 16 divisors (see below), whose sum is σ = 28170731502180. Its totient is φ = 5008130044800.

The previous prime is 12520325111971. The next prime is 12520325112059. The reversal of 12520325112040 is 4021152302521.

It is a happy number.

12520325112040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11340177480324 + 1180147631716 = 3367518^2 + 1086346^2 .

It is a super-2 number, since 2×12520325112040² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156504063861 + ... + 156504063940.

Almost surely, 2^{12520325112040} is an apocalyptic number.

12520325112040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12520325112040 is an abundant number, since it is smaller than the sum of its proper divisors (15650406390140).

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

12520325112040 is a wasteful number, since it uses less digits than its factorization.

12520325112040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313008127812 (or 313008127808 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 12520325112040 its reverse (4021152302521), we get a palindrome (16541477414561).

The spelling of 12520325112040 in words is "twelve trillion, five hundred twenty billion, three hundred twenty-five million, one hundred twelve thousand, forty".