2012001311 has 2 divisors, whose sum is σ = 2012001312. Its totient is φ = 2012001310.

The previous prime is 2012001293. The next prime is 2012001319. The reversal of 2012001311 is 1131002102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012001311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012001292 and 2012001301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012001319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006000655 + 1006000656.

It is an arithmetic number, because the mean of its divisors is an integer number (1006000656).

Almost surely, 2^2012001311 is an apocalyptic number.

2012001311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012001311 is an equidigital number, since it uses as much as digits as its factorization.

2012001311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2012001311 is about 44855.3375976594. The cubic root of 2012001311 is about 1262.4361432395.

Adding to 2012001311 its reverse (1131002102), we get a palindrome (3143003413).

The spelling of 2012001311 in words is "two billion, twelve million, one thousand, three hundred eleven".