11611441201 has 4 divisors (see below), whose sum is σ = 12294467172. Its totient is φ = 10928415232.

The previous prime is 11611441199. The next prime is 11611441307. The reversal of 11611441201 is 10214411611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10214411611 = 547 ⋅18673513.

It can be written as a sum of positive squares in 2 ways, for example, as 6355916176 + 5255525025 = 79724^2 + 72495^2 .

It is a cyclic number.

It is not a de Polignac number, because 11611441201 - 2¹ = 11611441199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11611441001) 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, 341512960 + ... + 341512993.

It is an arithmetic number, because the mean of its divisors is an integer number (3073616793).

Almost surely, 2^11611441201 is an apocalyptic number.

It is an amenable number.

11611441201 is a deficient number, since it is larger than the sum of its proper divisors (683025971).

11611441201 is an equidigital number, since it uses as much as digits as its factorization.

11611441201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683025970.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 11611441201 its reverse (10214411611), we get a palindrome (21825852812).

The spelling of 11611441201 in words is "eleven billion, six hundred eleven million, four hundred forty-one thousand, two hundred one".