1131320106 has 48 divisors (see below), whose sum is σ = 2840842368. Its totient is φ = 318679200.

The previous prime is 1131320051. The next prime is 1131320111. The reversal of 1131320106 is 6010231311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54285 + ... + 72176.

It is an arithmetic number, because the mean of its divisors is an integer number (59184216).

Almost surely, 2^1131320106 is an apocalyptic number.

1131320106 is an abundant number, since it is smaller than the sum of its proper divisors (1709522262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131320106 is a wasteful number, since it uses less digits than its factorization.

1131320106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126547 (or 126544 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1131320106 is about 33635.1022891265. The cubic root of 1131320106 is about 1041.9858831744.

Adding to 1131320106 its reverse (6010231311), we get a palindrome (7141551417).

The spelling of 1131320106 in words is "one billion, one hundred thirty-one million, three hundred twenty thousand, one hundred six".