921120911611 has 2 divisors, whose sum is σ = 921120911612. Its totient is φ = 921120911610.

The previous prime is 921120911591. The next prime is 921120911651. The reversal of 921120911611 is 116119021129.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 921120911611 - 2³¹ = 918973427963 is a prime.

It is not a weakly prime, because it can be changed into another prime (921120911651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460560455805 + 460560455806.

It is an arithmetic number, because the mean of its divisors is an integer number (460560455806).

Almost surely, 2^921120911611 is an apocalyptic number.

921120911611 is a deficient number, since it is larger than the sum of its proper divisors (1).

921120911611 is an equidigital number, since it uses as much as digits as its factorization.

921120911611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 34.

The spelling of 921120911611 in words is "nine hundred twenty-one billion, one hundred twenty million, nine hundred eleven thousand, six hundred eleven".