2012123011 has 8 divisors (see below), whose sum is σ = 2116908864. Its totient is φ = 1909990080.

The previous prime is 2012122997. The next prime is 2012123021. The reversal of 2012123011 is 1103212102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2012123011 - 2²¹ = 2010025859 is a prime.

It is a super-2 number, since 2×2012123011² = 8097278022791412242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012122982 and 2012123000.

It is not an unprimeable number, because it can be changed into a prime (2012123021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661675 + ... + 664708.

It is an arithmetic number, because the mean of its divisors is an integer number (264613608).

Almost surely, 2^2012123011 is an apocalyptic number.

2012123011 is a deficient number, since it is larger than the sum of its proper divisors (104785853).

2012123011 is a wasteful number, since it uses less digits than its factorization.

2012123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326461.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2012123011 is about 44856.6941604038. The cubic root of 2012123011 is about 1262.4615964007.

Adding to 2012123011 its reverse (1103212102), we get a palindrome (3115335113).

It can be divided in two parts, 201 and 2123011, that added together give a palindrome (2123212).

The spelling of 2012123011 in words is "two billion, twelve million, one hundred twenty-three thousand, eleven".