2011274081 has 2 divisors, whose sum is σ = 2011274082. Its totient is φ = 2011274080.

The previous prime is 2011274059. The next prime is 2011274093. The reversal of 2011274081 is 1804721102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1048723456 + 962550625 = 32384^2 + 31025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011274081 is a prime.

It is a super-2 number, since 2×2011274081² = 8090446857804789122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2011274081.

It is not a weakly prime, because it can be changed into another prime (2011271081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005637040 + 1005637041.

It is an arithmetic number, because the mean of its divisors is an integer number (1005637041).

Almost surely, 2^2011274081 is an apocalyptic number.

It is an amenable number.

2011274081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011274081 is an equidigital number, since it uses as much as digits as its factorization.

2011274081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 2011274081 is about 44847.2304719032. The cubic root of 2011274081 is about 1262.2840240426.

Adding to 2011274081 its reverse (1804721102), we get a palindrome (3815995183).

The spelling of 2011274081 in words is "two billion, eleven million, two hundred seventy-four thousand, eighty-one".