12920750513287 has 2 divisors, whose sum is σ = 12920750513288. Its totient is φ = 12920750513286.

The previous prime is 12920750513267. The next prime is 12920750513299. The reversal of 12920750513287 is 78231505702921.

12920750513287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12920750513287 - 2¹⁹ = 12920749988999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12920750513227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6460375256643 + 6460375256644.

It is an arithmetic number, because the mean of its divisors is an integer number (6460375256644).

Almost surely, 2^{12920750513287} is an apocalyptic number.

12920750513287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12920750513287 is an equidigital number, since it uses as much as digits as its factorization.

12920750513287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 12920750513287 in words is "twelve trillion, nine hundred twenty billion, seven hundred fifty million, five hundred thirteen thousand, two hundred eighty-seven".