1131203122103 has 2 divisors, whose sum is σ = 1131203122104. Its totient is φ = 1131203122102.

The previous prime is 1131203122073. The next prime is 1131203122109. The reversal of 1131203122103 is 3012213021311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131203122103 - 2²² = 1131198927799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131203122109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565601561051 + 565601561052.

It is an arithmetic number, because the mean of its divisors is an integer number (565601561052).

Almost surely, 2^{1131203122103} is an apocalyptic number.

1131203122103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131203122103 is an equidigital number, since it uses as much as digits as its factorization.

1131203122103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131203122103 its reverse (3012213021311), we get a palindrome (4143416143414).

The spelling of 1131203122103 in words is "one trillion, one hundred thirty-one billion, two hundred three million, one hundred twenty-two thousand, one hundred three".