1131102120 has 32 divisors (see below), whose sum is σ = 3393306720. Its totient is φ = 301627200.

The previous prime is 1131102113. The next prime is 1131102121. The reversal of 1131102120 is 212011311.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1131102096 and 1131102105.

It is not an unprimeable number, because it can be changed into a prime (1131102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4712806 + ... + 4713045.

It is an arithmetic number, because the mean of its divisors is an integer number (106040835).

Almost surely, 2^1131102120 is an apocalyptic number.

1131102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131102120 is an abundant number, since it is smaller than the sum of its proper divisors (2262204600).

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

1131102120 is a wasteful number, since it uses less digits than its factorization.

1131102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9425865 (or 9425861 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1131102120 is about 33631.8616790686. The cubic root of 1131102120 is about 1041.9189546003.

Adding to 1131102120 its reverse (212011311), we get a palindrome (1343113431).

The spelling of 1131102120 in words is "one billion, one hundred thirty-one million, one hundred two thousand, one hundred twenty".