2011213103 has 4 divisors (see below), whose sum is σ = 2012340360. Its totient is φ = 2010085848.

The previous prime is 2011213097. The next prime is 2011213109. The reversal of 2011213103 is 3013121102.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2011213097) and next prime (2011213109).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011213103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011213109) by changing a digit.

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, 560948 + ... + 564521.

It is an arithmetic number, because the mean of its divisors is an integer number (503085090).

Almost surely, 2^2011213103 is an apocalyptic number.

2011213103 is a deficient number, since it is larger than the sum of its proper divisors (1127257).

2011213103 is a wasteful number, since it uses less digits than its factorization.

2011213103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127256.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2011213103 is about 44846.5506254383. The cubic root of 2011213103 is about 1262.2712672310.

Adding to 2011213103 its reverse (3013121102), we get a palindrome (5024334205).

The spelling of 2011213103 in words is "two billion, eleven million, two hundred thirteen thousand, one hundred three".