1128120554 has 16 divisors (see below), whose sum is σ = 1943174880. Its totient is φ = 485793360.

The previous prime is 1128120551. The next prime is 1128120557. The reversal of 1128120554 is 4550218211.

It is an interprime number because it is at equal distance from previous prime (1128120551) and next prime (1128120557).

It is not an unprimeable number, because it can be changed into a prime (1128120551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349009 + ... + 1349844.

It is an arithmetic number, because the mean of its divisors is an integer number (121448430).

Almost surely, 2^1128120554 is an apocalyptic number.

1128120554 is a deficient number, since it is larger than the sum of its proper divisors (815054326).

1128120554 is a wasteful number, since it uses less digits than its factorization.

1128120554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698885.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 1128120554 is about 33587.5059211011. The cubic root of 1128120554 is about 1041.0026554487.

Adding to 1128120554 its reverse (4550218211), we get a palindrome (5678338765).

The spelling of 1128120554 in words is "one billion, one hundred twenty-eight million, one hundred twenty thousand, five hundred fifty-four".