1131101203 has 2 divisors, whose sum is σ = 1131101204. Its totient is φ = 1131101202.

The previous prime is 1131101177. The next prime is 1131101207. The reversal of 1131101203 is 3021011311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131101203 - 2¹⁷ = 1130970131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131101207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565550601 + 565550602.

It is an arithmetic number, because the mean of its divisors is an integer number (565550602).

Almost surely, 2^1131101203 is an apocalyptic number.

1131101203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131101203 is an equidigital number, since it uses as much as digits as its factorization.

1131101203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1131101203 is about 33631.8480461601. The cubic root of 1131101203 is about 1041.9186730342.

Adding to 1131101203 its reverse (3021011311), we get a palindrome (4152112514).

The spelling of 1131101203 in words is "one billion, one hundred thirty-one million, one hundred one thousand, two hundred three".