11330554261 has 4 divisors (see below), whose sum is σ = 12202135372. Its totient is φ = 10458973152.

The previous prime is 11330554253. The next prime is 11330554267. The reversal of 11330554261 is 16245503311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16245503311 = 48491 ⋅335021.

It can be written as a sum of positive squares in 2 ways, for example, as 5775088036 + 5555466225 = 75994^2 + 74535^2 .

It is a cyclic number.

It is not a de Polignac number, because 11330554261 - 2³ = 11330554253 is a prime.

It is a super-2 number, since 2×11330554261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11330554267) 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, 435790536 + ... + 435790561.

It is an arithmetic number, because the mean of its divisors is an integer number (3050533843).

Almost surely, 2^11330554261 is an apocalyptic number.

It is an amenable number.

11330554261 is a deficient number, since it is larger than the sum of its proper divisors (871581111).

11330554261 is an equidigital number, since it uses as much as digits as its factorization.

11330554261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871581110.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 11330554261 in words is "eleven billion, three hundred thirty million, five hundred fifty-four thousand, two hundred sixty-one".