6940108540121 has 2 divisors, whose sum is σ = 6940108540122. Its totient is φ = 6940108540120.

The previous prime is 6940108540031. The next prime is 6940108540129. The reversal of 6940108540121 is 1210458010496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6939873684496 + 234855625 = 2634364^2 + 15325^2 .

It is a cyclic number.

It is not a de Polignac number, because 6940108540121 - 2¹⁰ = 6940108539097 is a prime.

It is not a weakly prime, because it can be changed into another prime (6940108540129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470054270060 + 3470054270061.

It is an arithmetic number, because the mean of its divisors is an integer number (3470054270061).

Almost surely, 2^{6940108540121} is an apocalyptic number.

It is an amenable number.

6940108540121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6940108540121 is an equidigital number, since it uses as much as digits as its factorization.

6940108540121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 6940108540121 in words is "six trillion, nine hundred forty billion, one hundred eight million, five hundred forty thousand, one hundred twenty-one".