1211120000977 has 2 divisors, whose sum is σ = 1211120000978. Its totient is φ = 1211120000976.

The previous prime is 1211120000941. The next prime is 1211120001001. The reversal of 1211120000977 is 7790000211121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 980567335696 + 230552665281 = 990236^2 + 480159^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211120000977 - 2³⁹ = 661364187089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211120004977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605560000488 + 605560000489.

It is an arithmetic number, because the mean of its divisors is an integer number (605560000489).

Almost surely, 2^{1211120000977} is an apocalyptic number.

It is an amenable number.

1211120000977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211120000977 is an equidigital number, since it uses as much as digits as its factorization.

1211120000977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 31.

The spelling of 1211120000977 in words is "one trillion, two hundred eleven billion, one hundred twenty million, nine hundred seventy-seven", and thus it is an aban number.