11311522152 has 128 divisors (see below), whose sum is σ = 35399980800. Its totient is φ = 2936844288.

The previous prime is 11311522151. The next prime is 11311522177. The reversal of 11311522152 is 25122511311.

It is a super-2 number, since 2×11311522152² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (11311522151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14538 + ... + 151110.

It is an arithmetic number, because the mean of its divisors is an integer number (276562350).

Almost surely, 2^11311522152 is an apocalyptic number.

11311522152 is a gapful number since it is divisible by the number (12) 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 11311522152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17699990400).

11311522152 is an abundant number, since it is smaller than the sum of its proper divisors (24088458648).

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

11311522152 is a wasteful number, since it uses less digits than its factorization.

11311522152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136635 (or 136631 counting only the distinct ones).

The product of its digits is 600, while the sum is 24.

The spelling of 11311522152 in words is "eleven billion, three hundred eleven million, five hundred twenty-two thousand, one hundred fifty-two".