12520215023 has 2 divisors, whose sum is σ = 12520215024. Its totient is φ = 12520215022.

The previous prime is 12520215017. The next prime is 12520215049. The reversal of 12520215023 is 32051202521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12520215023 - 2⁸ = 12520214767 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12520215023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12520215073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6260107511 + 6260107512.

It is an arithmetic number, because the mean of its divisors is an integer number (6260107512).

Almost surely, 2^12520215023 is an apocalyptic number.

12520215023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12520215023 is an equidigital number, since it uses as much as digits as its factorization.

12520215023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 12520215023 its reverse (32051202521), we get a palindrome (44571417544).

The spelling of 12520215023 in words is "twelve billion, five hundred twenty million, two hundred fifteen thousand, twenty-three".