12520434353 has 8 divisors (see below), whose sum is σ = 14931201408. Its totient is φ = 10265200704.

The previous prime is 12520434347. The next prime is 12520434359. The reversal of 12520434353 is 35343402521.

12520434353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12520434347) and next prime (12520434359).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12520434353 - 2⁴ = 12520434337 is a prime.

It is a super-2 number, since 2×12520434353² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12520434359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38883176 + ... + 38883497.

It is an arithmetic number, because the mean of its divisors is an integer number (1866400176).

Almost surely, 2^12520434353 is an apocalyptic number.

It is an amenable number.

12520434353 is a deficient number, since it is larger than the sum of its proper divisors (2410767055).

12520434353 is an equidigital number, since it uses as much as digits as its factorization.

12520434353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77766703.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 12520434353 its reverse (35343402521), we get a palindrome (47863836874).

The spelling of 12520434353 in words is "twelve billion, five hundred twenty million, four hundred thirty-four thousand, three hundred fifty-three".