12115071533 has 2 divisors, whose sum is σ = 12115071534. Its totient is φ = 12115071532.

The previous prime is 12115071499. The next prime is 12115071547. The reversal of 12115071533 is 33517051121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9185880649 + 2929190884 = 95843^2 + 54122^2 .

It is a cyclic number.

It is not a de Polignac number, because 12115071533 - 2⁸ = 12115071277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12115071496 and 12115071505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12115070533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6057535766 + 6057535767.

It is an arithmetic number, because the mean of its divisors is an integer number (6057535767).

Almost surely, 2^12115071533 is an apocalyptic number.

It is an amenable number.

12115071533 is a deficient number, since it is larger than the sum of its proper divisors (1).

12115071533 is an equidigital number, since it uses as much as digits as its factorization.

12115071533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 29.

The spelling of 12115071533 in words is "twelve billion, one hundred fifteen million, seventy-one thousand, five hundred thirty-three".