11297173248 has 144 divisors (see below), whose sum is σ = 33611208960. Its totient is φ = 3742792704.

The previous prime is 11297173231. The next prime is 11297173249. The reversal of 11297173248 is 84237179211.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×11297173248² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11297173249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149411 + ... + 1159197.

Almost surely, 2^11297173248 is an apocalyptic number.

11297173248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11297173248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16805604480).

11297173248 is an abundant number, since it is smaller than the sum of its proper divisors (22314035712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11297173248 is an equidigital number, since it uses as much as digits as its factorization.

11297173248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9979 (or 9959 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The spelling of 11297173248 in words is "eleven billion, two hundred ninety-seven million, one hundred seventy-three thousand, two hundred forty-eight".