1123013357 has 2 divisors, whose sum is σ = 1123013358. Its totient is φ = 1123013356.

The previous prime is 1123013299. The next prime is 1123013383. The reversal of 1123013357 is 7533103211.

It is an a-pointer prime, because the next prime (1123013383) can be obtained adding 1123013357 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1088274121 + 34739236 = 32989^2 + 5894^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123013357 - 2³⁰ = 49271533 is a prime.

It is a super-2 number, since 2×1123013357² = 2522318000000818898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123016357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561506678 + 561506679.

It is an arithmetic number, because the mean of its divisors is an integer number (561506679).

Almost surely, 2^1123013357 is an apocalyptic number.

It is an amenable number.

1123013357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123013357 is an equidigital number, since it uses as much as digits as its factorization.

1123013357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 1123013357 is about 33511.3914512662. The cubic root of 1123013357 is about 1039.4293457746.

Adding to 1123013357 its reverse (7533103211), we get a palindrome (8656116568).

The spelling of 1123013357 in words is "one billion, one hundred twenty-three million, thirteen thousand, three hundred fifty-seven".