1011120219689 has 2 divisors, whose sum is σ = 1011120219690. Its totient is φ = 1011120219688.

The previous prime is 1011120219623. The next prime is 1011120219701. The reversal of 1011120219689 is 9869120211101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965272845289 + 45847374400 = 982483^2 + 214120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011120219689 - 2¹⁶ = 1011120154153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011120213689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505560109844 + 505560109845.

It is an arithmetic number, because the mean of its divisors is an integer number (505560109845).

Almost surely, 2^{1011120219689} is an apocalyptic number.

It is an amenable number.

1011120219689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011120219689 is an equidigital number, since it uses as much as digits as its factorization.

1011120219689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 41.

The spelling of 1011120219689 in words is "one trillion, eleven billion, one hundred twenty million, two hundred nineteen thousand, six hundred eighty-nine".