11011010211977 has 2 divisors, whose sum is σ = 11011010211978. Its totient is φ = 11011010211976.

The previous prime is 11011010211973. The next prime is 11011010212031. The reversal of 11011010211977 is 77911201011011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6823437333241 + 4187572878736 = 2612171^2 + 2046356^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011010211977 - 2² = 11011010211973 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011010211973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505505105988 + 5505505105989.

It is an arithmetic number, because the mean of its divisors is an integer number (5505505105989).

Almost surely, 2^{11011010211977} is an apocalyptic number.

It is an amenable number.

11011010211977 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011010211977 is an equidigital number, since it uses as much as digits as its factorization.

11011010211977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 32.

Adding to 11011010211977 its reverse (77911201011011), we get a palindrome (88922211222988).

The spelling of 11011010211977 in words is "eleven trillion, eleven billion, ten million, two hundred eleven thousand, nine hundred seventy-seven".