4011403231261 has 2 divisors, whose sum is σ = 4011403231262. Its totient is φ = 4011403231260.

The previous prime is 4011403231229. The next prime is 4011403231267. The reversal of 4011403231261 is 1621323041104.

4011403231261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3995001562500 + 16401668761 = 1998750^2 + 128069^2 .

It is a cyclic number.

It is not a de Polignac number, because 4011403231261 - 2⁵ = 4011403231229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4011403231267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2005701615630 + 2005701615631.

It is an arithmetic number, because the mean of its divisors is an integer number (2005701615631).

Almost surely, 2^{4011403231261} is an apocalyptic number.

It is an amenable number.

4011403231261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4011403231261 is an equidigital number, since it uses as much as digits as its factorization.

4011403231261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 4011403231261 its reverse (1621323041104), we get a palindrome (5632726272365).

The spelling of 4011403231261 in words is "four trillion, eleven billion, four hundred three million, two hundred thirty-one thousand, two hundred sixty-one".