1131111301 has 4 divisors (see below), whose sum is σ = 1144739232. Its totient is φ = 1117483372.

The previous prime is 1131111283. The next prime is 1131111313. The reversal of 1131111301 is 1031111311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1131111301 - 2¹¹ = 1131109253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131111101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6813841 + ... + 6814006.

It is an arithmetic number, because the mean of its divisors is an integer number (286184808).

Almost surely, 2^1131111301 is an apocalyptic number.

It is an amenable number.

1131111301 is a deficient number, since it is larger than the sum of its proper divisors (13627931).

1131111301 is an equidigital number, since it uses as much as digits as its factorization.

1131111301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13627930.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 1131111301 is about 33631.9981713843. The cubic root of 1131111301 is about 1041.9217736302.

Adding to 1131111301 its reverse (1031111311), we get a palindrome (2162222612).

The spelling of 1131111301 in words is "one billion, one hundred thirty-one million, one hundred eleven thousand, three hundred one".