12920927311 has 2 divisors, whose sum is σ = 12920927312. Its totient is φ = 12920927310.

The previous prime is 12920927297. The next prime is 12920927363. The reversal of 12920927311 is 11372902921.

It is a weak prime.

It is an emirp because it is prime and its reverse (11372902921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12920927311 - 2⁷ = 12920927183 is a prime.

It is a super-2 number, since 2×12920927311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12920927381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6460463655 + 6460463656.

It is an arithmetic number, because the mean of its divisors is an integer number (6460463656).

Almost surely, 2^12920927311 is an apocalyptic number.

12920927311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12920927311 is an equidigital number, since it uses as much as digits as its factorization.

12920927311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

It can be divided in two parts, 129209 and 27311, that added together give a triangular number (156520 = T₅₅₉).

The spelling of 12920927311 in words is "twelve billion, nine hundred twenty million, nine hundred twenty-seven thousand, three hundred eleven".