1131502120 has 64 divisors (see below), whose sum is σ = 2968992000. Its totient is φ = 387938880.

The previous prime is 1131502103. The next prime is 1131502121. The reversal of 1131502120 is 212051311.

It is a junction number, because it is equal to n+sod(n) for n = 1131502094 and 1131502103.

It is not an unprimeable number, because it can be changed into a prime (1131502121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27516 + ... + 54955.

It is an arithmetic number, because the mean of its divisors is an integer number (46390500).

Almost surely, 2^1131502120 is an apocalyptic number.

1131502120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131502120 is an abundant number, since it is smaller than the sum of its proper divisors (1837489880).

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

1131502120 is an equidigital number, since it uses as much as digits as its factorization.

1131502120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82503 (or 82485 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1131502120 is about 33637.8078952835. The cubic root of 1131502120 is about 1042.0417606246.

Adding to 1131502120 its reverse (212051311), we get a palindrome (1343553431).

The spelling of 1131502120 in words is "one billion, one hundred thirty-one million, five hundred two thousand, one hundred twenty".