1121310320 has 40 divisors (see below), whose sum is σ = 2807591136. Its totient is φ = 414021888.

The previous prime is 1121310319. The next prime is 1121310343. The reversal of 1121310320 is 230131211.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1121310295 and 1121310304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 538052 + ... + 540131.

Almost surely, 2^1121310320 is an apocalyptic number.

1121310320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121310320 is an abundant number, since it is smaller than the sum of its proper divisors (1686280816).

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

1121310320 is a wasteful number, since it uses less digits than its factorization.

1121310320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078209 (or 1078203 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1121310320 is about 33485.9719882819. The cubic root of 1121310320 is about 1038.9036523502.

Adding to 1121310320 its reverse (230131211), we get a palindrome (1351441531).

The spelling of 1121310320 in words is "one billion, one hundred twenty-one million, three hundred ten thousand, three hundred twenty".