1121601136 has 10 divisors (see below), whose sum is σ = 2173102232. Its totient is φ = 560800560.

The previous prime is 1121601031. The next prime is 1121601167. The reversal of 1121601136 is 6311061211.

It is a congruent 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 as a sum of consecutive naturals, namely, 35050020 + ... + 35050051.

Almost surely, 2^1121601136 is an apocalyptic number.

1121601136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1121601136 is a deficient number, since it is larger than the sum of its proper divisors (1051501096).

1121601136 is an equidigital number, since it uses as much as digits as its factorization.

1121601136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70100079 (or 70100073 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1121601136 is about 33490.3140624271. The cubic root of 1121601136 is about 1038.9934590949.

Adding to 1121601136 its reverse (6311061211), we get a palindrome (7432662347).

The spelling of 1121601136 in words is "one billion, one hundred twenty-one million, six hundred one thousand, one hundred thirty-six".