11379680281 has 4 divisors (see below), whose sum is σ = 11379899700. Its totient is φ = 11379460864.

The previous prime is 11379680267. The next prime is 11379680287. The reversal of 11379680281 is 18208697311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6106015881 + 5273664400 = 78141^2 + 72620^2 .

It is a cyclic number.

It is not a de Polignac number, because 11379680281 - 2⁷ = 11379680153 is a prime.

It is a super-2 number, since 2×11379680281² (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 (11379680287) 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, 16425 + ... + 151753.

It is an arithmetic number, because the mean of its divisors is an integer number (2844974925).

Almost surely, 2^11379680281 is an apocalyptic number.

It is an amenable number.

11379680281 is a deficient number, since it is larger than the sum of its proper divisors (219419).

11379680281 is an equidigital number, since it uses as much as digits as its factorization.

11379680281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219418.

The product of its (nonzero) digits is 145152, while the sum is 46.

The spelling of 11379680281 in words is "eleven billion, three hundred seventy-nine million, six hundred eighty thousand, two hundred eighty-one".