11237908081 has 9 divisors (see below), whose sum is σ = 11311854649. Its totient is φ = 11164443844.

The previous prime is 11237908067. The next prime is 11237908091. The reversal of 11237908081 is 18080973211.

The square root of 11237908081 is 106009.

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

It is not a de Polignac number, because 11237908081 - 2¹⁹ = 11237383793 is a prime.

It is a super-2 number, since 2×11237908081² (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 (11237908051) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24063810 + ... + 24064276.

Almost surely, 2^11237908081 is an apocalyptic number.

11237908081 is the 106009-th square number.

11237908081 is the 53005-th centered octagonal number.

It is an amenable number.

11237908081 is a deficient number, since it is larger than the sum of its proper divisors (73946568).

11237908081 is an frugal number, since it uses more digits than its factorization.

11237908081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 40.

The spelling of 11237908081 in words is "eleven billion, two hundred thirty-seven million, nine hundred eight thousand, eighty-one".