11451262117 has 4 divisors (see below), whose sum is σ = 11458497600. Its totient is φ = 11444026636.

The previous prime is 11451262111. The next prime is 11451262217. The reversal of 11451262117 is 71126215411.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 11451262117 - 2⁷ = 11451261989 is a prime.

It is a super-2 number, since 2×11451262117² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451262111) 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, 3615367 + ... + 3618532.

It is an arithmetic number, because the mean of its divisors is an integer number (2864624400).

Almost surely, 2^11451262117 is an apocalyptic number.

It is an amenable number.

11451262117 is a deficient number, since it is larger than the sum of its proper divisors (7235483).

11451262117 is an equidigital number, since it uses as much as digits as its factorization.

11451262117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235482.

The product of its digits is 3360, while the sum is 31.

Adding to 11451262117 its reverse (71126215411), we get a palindrome (82577477528).

The spelling of 11451262117 in words is "eleven billion, four hundred fifty-one million, two hundred sixty-two thousand, one hundred seventeen".