2011363601 has 4 divisors (see below), whose sum is σ = 2166083892. Its totient is φ = 1856643312.

The previous prime is 2011363583. The next prime is 2011363649. The reversal of 2011363601 is 1063631102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 482944576 + 1528419025 = 21976^2 + 39095^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011363601 - 2³⁰ = 937621777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011363661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77360126 + ... + 77360151.

It is an arithmetic number, because the mean of its divisors is an integer number (541520973).

Almost surely, 2^2011363601 is an apocalyptic number.

It is an amenable number.

2011363601 is a deficient number, since it is larger than the sum of its proper divisors (154720291).

2011363601 is a wasteful number, since it uses less digits than its factorization.

2011363601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154720290.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2011363601 is about 44848.2285157396. The cubic root of 2011363601 is about 1262.3027514735.

Adding to 2011363601 its reverse (1063631102), we get a palindrome (3074994703).

The spelling of 2011363601 in words is "two billion, eleven million, three hundred sixty-three thousand, six hundred one".