12520532434 has 4 divisors (see below), whose sum is σ = 18780798654. Its totient is φ = 6260266216.

The previous prime is 12520532407. The next prime is 12520532443. The reversal of 12520532434 is 43423502521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11716980025 + 803552409 = 108245^2 + 28347^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12520532396 and 12520532405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3130133107 + ... + 3130133110.

Almost surely, 2^12520532434 is an apocalyptic number.

12520532434 is a deficient number, since it is larger than the sum of its proper divisors (6260266220).

12520532434 is an equidigital number, since it uses as much as digits as its factorization.

12520532434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6260266219.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 12520532434 in words is "twelve billion, five hundred twenty million, five hundred thirty-two thousand, four hundred thirty-four".