1123103100311 has 2 divisors, whose sum is σ = 1123103100312. Its totient is φ = 1123103100310.

The previous prime is 1123103100289. The next prime is 1123103100331. The reversal of 1123103100311 is 1130013013211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123103100311 is a prime.

It is a super-2 number, since 2×1123103100311² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123103100311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123103100331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561551550155 + 561551550156.

It is an arithmetic number, because the mean of its divisors is an integer number (561551550156).

Almost surely, 2^{1123103100311} is an apocalyptic number.

1123103100311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123103100311 is an equidigital number, since it uses as much as digits as its factorization.

1123103100311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1123103100311 its reverse (1130013013211), we get a palindrome (2253116113522).

The spelling of 1123103100311 in words is "one trillion, one hundred twenty-three billion, one hundred three million, one hundred thousand, three hundred eleven".