11123100689 has 2 divisors, whose sum is σ = 11123100690. Its totient is φ = 11123100688.

The previous prime is 11123100643. The next prime is 11123100701. The reversal of 11123100689 is 98600132111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6499100689 + 4624000000 = 80617^2 + 68000^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123100689 - 2⁸ = 11123100433 is a prime.

It is a super-3 number, since 3×11123100689³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11123100389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561550344 + 5561550345.

It is an arithmetic number, because the mean of its divisors is an integer number (5561550345).

Almost surely, 2^11123100689 is an apocalyptic number.

It is an amenable number.

11123100689 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123100689 is an equidigital number, since it uses as much as digits as its factorization.

11123100689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 11123100689 in words is "eleven billion, one hundred twenty-three million, one hundred thousand, six hundred eighty-nine".