12520023130320 has 80 divisors (see below), whose sum is σ = 38876012966400. Its totient is φ = 3333172511232.

The previous prime is 12520023130267. The next prime is 12520023130327. The reversal of 12520023130320 is 2303132002521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12520023130327) 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, 42825295 + ... + 43116654.

It is an arithmetic number, because the mean of its divisors is an integer number (485950162080).

Almost surely, 2^{12520023130320} is an apocalyptic number.

12520023130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12520023130320 is an abundant number, since it is smaller than the sum of its proper divisors (26355989836080).

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

12520023130320 is a wasteful number, since it uses less digits than its factorization.

12520023130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85942572 (or 85942566 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 12520023130320 its reverse (2303132002521), we get a palindrome (14823155132841).

The spelling of 12520023130320 in words is "twelve trillion, five hundred twenty billion, twenty-three million, one hundred thirty thousand, three hundred twenty".