12520512352001 has 4 divisors (see below), whose sum is σ = 12521094750000. Its totient is φ = 12519929954004.

The previous prime is 12520512351983. The next prime is 12520512352027. The reversal of 12520512352001 is 10025321502521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12520512352001 is a prime.

It is a super-2 number, since 2×12520512352001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12520512358001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 291166751 + ... + 291209748.

It is an arithmetic number, because the mean of its divisors is an integer number (3130273687500).

Almost surely, 2^{12520512352001} is an apocalyptic number.

It is an amenable number.

12520512352001 is a deficient number, since it is larger than the sum of its proper divisors (582397999).

12520512352001 is an equidigital number, since it uses as much as digits as its factorization.

12520512352001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582397998.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 12520512352001 its reverse (10025321502521), we get a palindrome (22545833854522).

The spelling of 12520512352001 in words is "twelve trillion, five hundred twenty billion, five hundred twelve million, three hundred fifty-two thousand, one".