11290975081 has 9 divisors (see below), whose sum is σ = 11491972023. Its totient is φ = 11093439600.

The previous prime is 11290975061. The next prime is 11290975097. The reversal of 11290975081 is 18057909211.

The square root of 11290975081 is 106259.

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

It can be written as a sum of positive squares in only one way, i.e., 1466200681 + 9824774400 = 38291^2 + 99120^2 .

It is not a de Polignac number, because 11290975081 - 2¹³ = 11290966889 is a prime.

It is a super-2 number, since 2×11290975081² (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 (11290975001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6268381 + ... + 6270181.

Almost surely, 2^11290975081 is an apocalyptic number.

11290975081 is the 106259-th square number.

11290975081 is the 53130-th centered octagonal number.

It is an amenable number.

11290975081 is a deficient number, since it is larger than the sum of its proper divisors (200996942).

11290975081 is an frugal number, since it uses more digits than its factorization.

11290975081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720 (or 1860 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 43.

The spelling of 11290975081 in words is "eleven billion, two hundred ninety million, nine hundred seventy-five thousand, eighty-one".