1125354321 has 96 divisors (see below), whose sum is σ = 2137943808. Its totient is φ = 553512960.

The previous prime is 1125354313. The next prime is 1125354337. The reversal of 1125354321 is 1234535211.

1125354321 is a `hidden beast` number, since 112 + 5 + 3 + 543 + 2 + 1 = 666.

It is not a de Polignac number, because 1125354321 - 2³ = 1125354313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125354301) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1823605 + ... + 1824221.

It is an arithmetic number, because the mean of its divisors is an integer number (22270248).

Almost surely, 2^1125354321 is an apocalyptic number.

It is an amenable number.

1125354321 is a deficient number, since it is larger than the sum of its proper divisors (1012589487).

1125354321 is a wasteful number, since it uses less digits than its factorization.

1125354321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 788 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1125354321 is about 33546.3011522880. The cubic root of 1125354321 is about 1040.1510878250.

Adding to 1125354321 its reverse (1234535211), we get a palindrome (2359889532).

The spelling of 1125354321 in words is "one billion, one hundred twenty-five million, three hundred fifty-four thousand, three hundred twenty-one".