11315402532 has 72 divisors (see below), whose sum is σ = 32738876352. Its totient is φ = 3228033600.

The previous prime is 11315402513. The next prime is 11315402537. The reversal of 11315402532 is 23520451311.

11315402532 is a `hidden beast` number, since 113 + 1 + 540 + 2 + 5 + 3 + 2 = 666.

It is a super-2 number, since 2×11315402532² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11315402496 and 11315402505.

It is not an unprimeable number, because it can be changed into a prime (11315402537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132607 + ... + 200537.

It is an arithmetic number, because the mean of its divisors is an integer number (454706616).

Almost surely, 2^11315402532 is an apocalyptic number.

11315402532 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 11315402532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16369438176).

11315402532 is an abundant number, since it is smaller than the sum of its proper divisors (21423473820).

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

11315402532 is a wasteful number, since it uses less digits than its factorization.

11315402532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68609 (or 68604 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 11315402532 its reverse (23520451311), we get a palindrome (34835853843).

The spelling of 11315402532 in words is "eleven billion, three hundred fifteen million, four hundred two thousand, five hundred thirty-two".