2013123011 has 16 divisors (see below), whose sum is σ = 2076369120. Its totient is φ = 1951027200.

The previous prime is 2013122999. The next prime is 2013123023. The reversal of 2013123011 is 1103213102.

It is an interprime number because it is at equal distance from previous prime (2013122999) and next prime (2013123023).

It is a cyclic number.

It is not a de Polignac number, because 2013123011 - 2¹⁰ = 2013121987 is a prime.

It is a super-2 number, since 2×2013123011² = 8105328514835412242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013123061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1745411 + ... + 1746563.

It is an arithmetic number, because the mean of its divisors is an integer number (129773070).

Almost surely, 2^2013123011 is an apocalyptic number.

2013123011 is a deficient number, since it is larger than the sum of its proper divisors (63246109).

2013123011 is a wasteful number, since it uses less digits than its factorization.

2013123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

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

The square root of 2013123011 is about 44867.8393841290. The cubic root of 2013123011 is about 1262.6707043105.

Adding to 2013123011 its reverse (1103213102), we get a palindrome (3116336113).

Subtracting from 2013123011 its reverse (1103213102), we obtain a palindrome (909909909).

The spelling of 2013123011 in words is "two billion, thirteen million, one hundred twenty-three thousand, eleven".