1001113045 has 4 divisors (see below), whose sum is σ = 1201335660. Its totient is φ = 800890432.

The previous prime is 1001113027. The next prime is 1001113067. The reversal of 1001113045 is 5403111001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5403111001 = 239 ⋅22607159.

It can be written as a sum of positive squares in 2 ways, for example, as 161620369 + 839492676 = 12713^2 + 28974^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001113045 - 2²⁷ = 866895317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100111300 + ... + 100111309.

It is an arithmetic number, because the mean of its divisors is an integer number (300333915).

Almost surely, 2^1001113045 is an apocalyptic number.

It is an amenable number.

1001113045 is a deficient number, since it is larger than the sum of its proper divisors (200222615).

1001113045 is an equidigital number, since it uses as much as digits as its factorization.

1001113045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200222614.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1001113045 is about 31640.3704940382. The cubic root of 1001113045 is about 1000.3708774329.

Adding to 1001113045 its reverse (5403111001), we get a palindrome (6404224046).

The spelling of 1001113045 in words is "one billion, one million, one hundred thirteen thousand, forty-five".