20112007 has 2 divisors, whose sum is σ = 20112008. Its totient is φ = 20112006.

The previous prime is 20111999. The next prime is 20112023. The reversal of 20112007 is 70021102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20112007 - 2³ = 20111999 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056003 + 10056004.

It is an arithmetic number, because the mean of its divisors is an integer number (10056004).

Almost surely, 2^20112007 is an apocalyptic number.

20112007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112007 is an equidigital number, since it uses as much as digits as its factorization.

20112007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 20112007 is about 4484.6412342572. The cubic root of 20112007 is about 271.9475416063.

Adding to 20112007 its reverse (70021102), we get a palindrome (90133109).

The spelling of 20112007 in words is "twenty million, one hundred twelve thousand, seven".