12015270529 has 2 divisors, whose sum is σ = 12015270530. Its totient is φ = 12015270528.

The previous prime is 12015270511. The next prime is 12015270581. The reversal of 12015270529 is 92507251021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10531480129 + 1483790400 = 102623^2 + 38520^2 .

It is an emirp because it is prime and its reverse (92507251021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12015270529 - 2⁵ = 12015270497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12015270494 and 12015270503.

It is not a weakly prime, because it can be changed into another prime (12015270629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6007635264 + 6007635265.

It is an arithmetic number, because the mean of its divisors is an integer number (6007635265).

Almost surely, 2^12015270529 is an apocalyptic number.

It is an amenable number.

12015270529 is a deficient number, since it is larger than the sum of its proper divisors (1).

12015270529 is an equidigital number, since it uses as much as digits as its factorization.

12015270529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 12015270529 in words is "twelve billion, fifteen million, two hundred seventy thousand, five hundred twenty-nine".