1123155124237 has 2 divisors, whose sum is σ = 1123155124238. Its totient is φ = 1123155124236.

The previous prime is 1123155124219. The next prime is 1123155124243. The reversal of 1123155124237 is 7324215513211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 739968125796 + 383186998441 = 860214^2 + 619021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123155124237 is a prime.

It is a super-2 number, since 2×1123155124237² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123155124196 and 1123155124205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123155124207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561577562118 + 561577562119.

It is an arithmetic number, because the mean of its divisors is an integer number (561577562119).

Almost surely, 2^{1123155124237} is an apocalyptic number.

It is an amenable number.

1123155124237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123155124237 is an equidigital number, since it uses as much as digits as its factorization.

1123155124237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The spelling of 1123155124237 in words is "one trillion, one hundred twenty-three billion, one hundred fifty-five million, one hundred twenty-four thousand, two hundred thirty-seven".