12620531304811 has 2 divisors, whose sum is σ = 12620531304812. Its totient is φ = 12620531304810.

The previous prime is 12620531304761. The next prime is 12620531304839. The reversal of 12620531304811 is 11840313502621.

12620531304811 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 12620531304811 - 2⁷ = 12620531304683 is a prime.

It is not a weakly prime, because it can be changed into another prime (12620531304611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6310265652405 + 6310265652406.

It is an arithmetic number, because the mean of its divisors is an integer number (6310265652406).

Almost surely, 2^{12620531304811} is an apocalyptic number.

12620531304811 is a deficient number, since it is larger than the sum of its proper divisors (1).

12620531304811 is an equidigital number, since it uses as much as digits as its factorization.

12620531304811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 12620531304811 in words is "twelve trillion, six hundred twenty billion, five hundred thirty-one million, three hundred four thousand, eight hundred eleven".