1131200123303 has 2 divisors, whose sum is σ = 1131200123304. Its totient is φ = 1131200123302.

The previous prime is 1131200123293. The next prime is 1131200123323. The reversal of 1131200123303 is 3033210021311.

It is an a-pointer prime, because the next prime (1131200123323) can be obtained adding 1131200123303 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131200123303 is a prime.

It is a super-2 number, since 2×1131200123303² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131200123323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565600061651 + 565600061652.

It is an arithmetic number, because the mean of its divisors is an integer number (565600061652).

Almost surely, 2^{1131200123303} is an apocalyptic number.

1131200123303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131200123303 is an equidigital number, since it uses as much as digits as its factorization.

1131200123303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1131200123303 its reverse (3033210021311), we get a palindrome (4164410144614).

The spelling of 1131200123303 in words is "one trillion, one hundred thirty-one billion, two hundred million, one hundred twenty-three thousand, three hundred three".