1131030120 has 64 divisors (see below), whose sum is σ = 3701557440. Its totient is φ = 274188800.

The previous prime is 1131030101. The next prime is 1131030151. The reversal of 1131030120 is 210301311.

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 = 1131030096 and 1131030105.

It is an unprimeable number.

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, 427101 + ... + 429740.

It is an arithmetic number, because the mean of its divisors is an integer number (57836835).

Almost surely, 2^1131030120 is an apocalyptic number.

1131030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131030120 is an abundant number, since it is smaller than the sum of its proper divisors (2570527320).

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

1131030120 is a wasteful number, since it uses less digits than its factorization.

1131030120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856866 (or 856862 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1131030120 is about 33630.7912484973. The cubic root of 1131030120 is about 1041.8968464413.

Adding to 1131030120 its reverse (210301311), we get a palindrome (1341331431).

The spelling of 1131030120 in words is "one billion, one hundred thirty-one million, thirty thousand, one hundred twenty".