11020100989 has 2 divisors, whose sum is σ = 11020100990. Its totient is φ = 11020100988.

The previous prime is 11020100969. The next prime is 11020101031. The reversal of 11020100989 is 98900102011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7694272089 + 3325828900 = 87717^2 + 57670^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020100989 - 2¹⁵ = 11020068221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11020100989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020100969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510050494 + 5510050495.

It is an arithmetic number, because the mean of its divisors is an integer number (5510050495).

Almost surely, 2^11020100989 is an apocalyptic number.

It is an amenable number.

11020100989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020100989 is an equidigital number, since it uses as much as digits as its factorization.

11020100989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 11020100989 in words is "eleven billion, twenty million, one hundred thousand, nine hundred eighty-nine".