1121310554 has 32 divisors (see below), whose sum is σ = 2072534016. Its totient is φ = 443076480.

The previous prime is 1121310551. The next prime is 1121310557. The reversal of 1121310554 is 4550131211.

It is an interprime number because it is at equal distance from previous prime (1121310551) and next prime (1121310557).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121310551) 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 15 ways as a sum of consecutive naturals, for example, 177254 + ... + 183470.

It is an arithmetic number, because the mean of its divisors is an integer number (64766688).

Almost surely, 2^1121310554 is an apocalyptic number.

1121310554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1121310554 is a deficient number, since it is larger than the sum of its proper divisors (951223462).

1121310554 is a wasteful number, since it uses less digits than its factorization.

1121310554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1121310554 is about 33485.9754822821. The cubic root of 1121310554 is about 1038.9037246179.

Adding to 1121310554 its reverse (4550131211), we get a palindrome (5671441765).

The spelling of 1121310554 in words is "one billion, one hundred twenty-one million, three hundred ten thousand, five hundred fifty-four".