1131023113 has 16 divisors (see below), whose sum is σ = 1294392960. Its totient is φ = 978745600.

The previous prime is 1131023111. The next prime is 1131023119. The reversal of 1131023113 is 3113201311.

It is a cyclic number.

It is not a de Polignac number, because 1131023113 - 2¹ = 1131023111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131023111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2320 + ... + 47617.

It is an arithmetic number, because the mean of its divisors is an integer number (80899560).

Almost surely, 2^1131023113 is an apocalyptic number.

It is an amenable number.

1131023113 is a deficient number, since it is larger than the sum of its proper divisors (163369847).

1131023113 is a wasteful number, since it uses less digits than its factorization.

1131023113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50048.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1131023113 is about 33630.6870729695. The cubic root of 1131023113 is about 1041.8946948374.

Adding to 1131023113 its reverse (3113201311), we get a palindrome (4244224424).

The spelling of 1131023113 in words is "one billion, one hundred thirty-one million, twenty-three thousand, one hundred thirteen".