2011403401 has 6 divisors (see below), whose sum is σ = 2339795850. Its totient is φ = 1724060016.

The previous prime is 2011403393. The next prime is 2011403413. The reversal of 2011403401 is 1043041102.

It can be written as a sum of positive squares in only one way, i.e., 1985148025 + 26255376 = 44555^2 + 5124^2 .

It is not a de Polignac number, because 2011403401 - 2³ = 2011403393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011407401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20524476 + ... + 20524573.

It is an arithmetic number, because the mean of its divisors is an integer number (389965975).

Almost surely, 2^2011403401 is an apocalyptic number.

It is an amenable number.

2011403401 is a deficient number, since it is larger than the sum of its proper divisors (328392449).

2011403401 is an equidigital number, since it uses as much as digits as its factorization.

2011403401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41049063 (or 41049056 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2011403401 is about 44848.6722322969. The cubic root of 2011403401 is about 1262.3110773870.

Adding to 2011403401 its reverse (1043041102), we get a palindrome (3054444503).

The spelling of 2011403401 in words is "two billion, eleven million, four hundred three thousand, four hundred one".