1123688318101 has 2 divisors, whose sum is σ = 1123688318102. Its totient is φ = 1123688318100.

The previous prime is 1123688318069. The next prime is 1123688318111. The reversal of 1123688318101 is 1018138863211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1115661950001 + 8026368100 = 1056249^2 + 89590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123688318101 - 2⁵ = 1123688318069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123688318111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561844159050 + 561844159051.

It is an arithmetic number, because the mean of its divisors is an integer number (561844159051).

Almost surely, 2^{1123688318101} is an apocalyptic number.

It is an amenable number.

1123688318101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123688318101 is an equidigital number, since it uses as much as digits as its factorization.

1123688318101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 43.

The spelling of 1123688318101 in words is "one trillion, one hundred twenty-three billion, six hundred eighty-eight million, three hundred eighteen thousand, one hundred one".