1121303554 has 24 divisors (see below), whose sum is σ = 1960727040. Its totient is φ = 479535336.

The previous prime is 1121303543. The next prime is 1121303587. The reversal of 1121303554 is 4553031211.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 34999 + ... + 58885.

It is an arithmetic number, because the mean of its divisors is an integer number (81696960).

Almost surely, 2^1121303554 is an apocalyptic number.

1121303554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1121303554 is a deficient number, since it is larger than the sum of its proper divisors (839423486).

1121303554 is a wasteful number, since it uses less digits than its factorization.

1121303554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24382 (or 24375 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1121303554 is about 33485.8709607500. The cubic root of 1121303554 is about 1038.9015627603.

Adding to 1121303554 its reverse (4553031211), we get a palindrome (5674334765).

The spelling of 1121303554 in words is "one billion, one hundred twenty-one million, three hundred three thousand, five hundred fifty-four".