139210909811 has 2 divisors, whose sum is σ = 139210909812. Its totient is φ = 139210909810.

The previous prime is 139210909807. The next prime is 139210909837. The reversal of 139210909811 is 118909012931.

139210909811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139210909811 - 2² = 139210909807 is a prime.

It is not a weakly prime, because it can be changed into another prime (139210909861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69605454905 + 69605454906.

It is an arithmetic number, because the mean of its divisors is an integer number (69605454906).

Almost surely, 2^139210909811 is an apocalyptic number.

139210909811 is a deficient number, since it is larger than the sum of its proper divisors (1).

139210909811 is an equidigital number, since it uses as much as digits as its factorization.

139210909811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 44.

The spelling of 139210909811 in words is "one hundred thirty-nine billion, two hundred ten million, nine hundred nine thousand, eight hundred eleven".