1113531001 has 4 divisors (see below), whose sum is σ = 1214761104. Its totient is φ = 1012300900.

The previous prime is 1113530989. The next prime is 1113531017. The reversal of 1113531001 is 1001353111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1001353111 = 11 ⋅91032101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113531001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113531091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50615035 + ... + 50615056.

It is an arithmetic number, because the mean of its divisors is an integer number (303690276).

Almost surely, 2^1113531001 is an apocalyptic number.

1113531001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1113531001 is a deficient number, since it is larger than the sum of its proper divisors (101230103).

1113531001 is a wasteful number, since it uses less digits than its factorization.

1113531001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101230102.

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1113531001 is about 33369.6119396076. The cubic root of 1113531001 is about 1036.4955394969.

Adding to 1113531001 its reverse (1001353111), we get a palindrome (2114884112).

The spelling of 1113531001 in words is "one billion, one hundred thirteen million, five hundred thirty-one thousand, one".