1103012001 has 72 divisors (see below), whose sum is σ = 2005045224. Its totient is φ = 579156480.

The previous prime is 1103011999. The next prime is 1103012017. The reversal of 1103012001 is 1002103011.

It can be written as a sum of positive squares in 4 ways, for example, as 2099601 + 1100912400 = 1449^2 + 33180^2 .

It is not a de Polignac number, because 1103012001 - 2¹ = 1103011999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1103012201) 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 71 ways as a sum of consecutive naturals, for example, 2413365 + ... + 2413821.

Almost surely, 2^1103012001 is an apocalyptic number.

It is an amenable number.

1103012001 is a deficient number, since it is larger than the sum of its proper divisors (902033223).

1103012001 is a wasteful number, since it uses less digits than its factorization.

1103012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1103012001 is about 33211.6244860139. The cubic root of 1103012001 is about 1033.2214473262.

Adding to 1103012001 its reverse (1002103011), we get a palindrome (2105115012).

The spelling of 1103012001 in words is "one billion, one hundred three million, twelve thousand, one".