1103312001 has 48 divisors (see below), whose sum is σ = 1704987648. Its totient is φ = 632897760.

The previous prime is 1103311973. The next prime is 1103312003. The reversal of 1103312001 is 1002133011.

It is a de Polignac number, because none of the positive numbers 2^k-1103312001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103312003) 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 47 ways as a sum of consecutive naturals, for example, 859306 + ... + 860588.

It is an arithmetic number, because the mean of its divisors is an integer number (35520576).

Almost surely, 2^1103312001 is an apocalyptic number.

1103312001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1103312001 is a deficient number, since it is larger than the sum of its proper divisors (601675647).

1103312001 is a wasteful number, since it uses less digits than its factorization.

1103312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1103312001 is about 33216.1406698611. The cubic root of 1103312001 is about 1033.3151115644.

Adding to 1103312001 its reverse (1002133011), we get a palindrome (2105445012).

The spelling of 1103312001 in words is "one billion, one hundred three million, three hundred twelve thousand, one".