1123223113157 has 2 divisors, whose sum is σ = 1123223113158. Its totient is φ = 1123223113156.

The previous prime is 1123223113139. The next prime is 1123223113241. The reversal of 1123223113157 is 7513113223211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1065944742916 + 57278370241 = 1032446^2 + 239329^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123223113157 - 2²⁰ = 1123222064581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123223113457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561611556578 + 561611556579.

It is an arithmetic number, because the mean of its divisors is an integer number (561611556579).

Almost surely, 2^{1123223113157} is an apocalyptic number.

It is an amenable number.

1123223113157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123223113157 is an equidigital number, since it uses as much as digits as its factorization.

1123223113157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

Adding to 1123223113157 its reverse (7513113223211), we get a palindrome (8636336336368).

The spelling of 1123223113157 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-three million, one hundred thirteen thousand, one hundred fifty-seven".