1123103100073 has 2 divisors, whose sum is σ = 1123103100074. Its totient is φ = 1123103100072.

The previous prime is 1123103099983. The next prime is 1123103100137. The reversal of 1123103100073 is 3700013013211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1085322236944 + 37780863129 = 1041788^2 + 194373^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123103100073 - 2¹³ = 1123103091881 is a prime.

It is a super-2 number, since 2×1123103100073² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1123103170073) 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, 561551550036 + 561551550037.

It is an arithmetic number, because the mean of its divisors is an integer number (561551550037).

Almost surely, 2^{1123103100073} is an apocalyptic number.

It is an amenable number.

1123103100073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123103100073 is an equidigital number, since it uses as much as digits as its factorization.

1123103100073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 1123103100073 its reverse (3700013013211), we get a palindrome (4823116113284).

The spelling of 1123103100073 in words is "one trillion, one hundred twenty-three billion, one hundred three million, one hundred thousand, seventy-three".