11651113 has 4 divisors (see below), whose sum is σ = 11658640. Its totient is φ = 11643588.

The previous prime is 11651111. The next prime is 11651117. The reversal of 11651113 is 31115611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31115611 = 53 ⋅587087.

It is a 4-Lehmer number, since φ(11651113) divides (11651113-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 11651113 - 2¹ = 11651111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11651111) 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, 495 + ... + 4852.

It is an arithmetic number, because the mean of its divisors is an integer number (2914660).

Almost surely, 2^11651113 is an apocalyptic number.

It is an amenable number.

11651113 is a deficient number, since it is larger than the sum of its proper divisors (7527).

11651113 is an equidigital number, since it uses as much as digits as its factorization.

11651113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526.

The product of its digits is 90, while the sum is 19.

The square root of 11651113 is about 3413.3726722993. The cubic root of 11651113 is about 226.7022365843.

Adding to 11651113 its reverse (31115611), we get a palindrome (42766724).

It can be divided in two parts, 1165 and 1113, that added together give a triangular number (2278 = T₆₇).

The spelling of 11651113 in words is "eleven million, six hundred fifty-one thousand, one hundred thirteen".