11530243242 has 40 divisors (see below), whose sum is σ = 29527186656. Its totient is φ = 3294354888.

The previous prime is 11530243223. The next prime is 11530243243. The reversal of 11530243242 is 24234203511.

11530243242 is a `hidden beast` number, since 115 + 302 + 4 + 3 + 242 = 666.

It is a super-3 number, since 3×11530243242³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11530243243) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5082748 + ... + 5085015.

Almost surely, 2^11530243242 is an apocalyptic number.

11530243242 is an abundant number, since it is smaller than the sum of its proper divisors (17996943414).

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

11530243242 is a wasteful number, since it uses less digits than its factorization.

11530243242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10167784 (or 10167775 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 11530243242 its reverse (24234203511), we get a palindrome (35764446753).

The spelling of 11530243242 in words is "eleven billion, five hundred thirty million, two hundred forty-three thousand, two hundred forty-two".