1113555201 has 32 divisors (see below), whose sum is σ = 1638320640. Its totient is φ = 667180800.

The previous prime is 1113555187. The next prime is 1113555221. The reversal of 1113555201 is 1025553111.

It is not a de Polignac number, because 1113555201 - 2²³ = 1105166593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113555221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1295910 + ... + 1296768.

It is an arithmetic number, because the mean of its divisors is an integer number (51197520).

Almost surely, 2^1113555201 is an apocalyptic number.

1113555201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1113555201 is a deficient number, since it is larger than the sum of its proper divisors (524765439).

1113555201 is a wasteful number, since it uses less digits than its factorization.

1113555201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 1113555201 is about 33369.9745429930. The cubic root of 1113555201 is about 1036.5030480472.

The spelling of 1113555201 in words is "one billion, one hundred thirteen million, five hundred fifty-five thousand, two hundred one".