13212115529 has 2 divisors, whose sum is σ = 13212115530. Its totient is φ = 13212115528.

The previous prime is 13212115489. The next prime is 13212115537. The reversal of 13212115529 is 92551121231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11103469129 + 2108646400 = 105373^2 + 45920^2 .

It is a cyclic number.

It is not a de Polignac number, because 13212115529 - 2¹⁶ = 13212049993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13212115495 and 13212115504.

It is not a weakly prime, because it can be changed into another prime (13212115559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606057764 + 6606057765.

It is an arithmetic number, because the mean of its divisors is an integer number (6606057765).

Almost surely, 2^13212115529 is an apocalyptic number.

It is an amenable number.

13212115529 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212115529 is an equidigital number, since it uses as much as digits as its factorization.

13212115529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 32.

The spelling of 13212115529 in words is "thirteen billion, two hundred twelve million, one hundred fifteen thousand, five hundred twenty-nine".