11011329961 has 2 divisors, whose sum is σ = 11011329962. Its totient is φ = 11011329960.

The previous prime is 11011329929. The next prime is 11011330013. The reversal of 11011329961 is 16992311011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10786899600 + 224430361 = 103860^2 + 14981^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011329961 - 2⁵ = 11011329929 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011329911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505664980 + 5505664981.

It is an arithmetic number, because the mean of its divisors is an integer number (5505664981).

Almost surely, 2^11011329961 is an apocalyptic number.

It is an amenable number.

11011329961 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011329961 is an equidigital number, since it uses as much as digits as its factorization.

11011329961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 11011329961 in words is "eleven billion, eleven million, three hundred twenty-nine thousand, nine hundred sixty-one".