11350984681 has 3 divisors (see below), whose sum is σ = 11351091223. Its totient is φ = 11350878140.

The previous prime is 11350984657. The next prime is 11350984699. The reversal of 11350984681 is 18648905311.

The square root of 11350984681 is 106541.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18648905311 = 607 ⋅30723073.

It can be written as a sum of positive squares in only one way, i.e., 505845081 + 10845139600 = 22491^2 + 104140^2 .

It is not a de Polignac number, because 11350984681 - 2⁷ = 11350984553 is a prime.

It is a super-2 number, since 2×11350984681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11350984181) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 53271 + ... + 159811.

Almost surely, 2^11350984681 is an apocalyptic number.

11350984681 is the 106541-st square number.

11350984681 is the 53271-st centered octagonal number.

It is an amenable number.

11350984681 is a deficient number, since it is larger than the sum of its proper divisors (106542).

11350984681 is an frugal number, since it uses more digits than its factorization.

11350984681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213082 (or 106541 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 11350984681 in words is "eleven billion, three hundred fifty million, nine hundred eighty-four thousand, six hundred eighty-one".