11520143242 has 16 divisors (see below), whose sum is σ = 17524736640. Its totient is φ = 5678779392.

The previous prime is 11520143237. The next prime is 11520143293. The reversal of 11520143242 is 24234102511.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54538 + ... + 161290.

It is an arithmetic number, because the mean of its divisors is an integer number (1095296040).

Almost surely, 2^11520143242 is an apocalyptic number.

11520143242 is a deficient number, since it is larger than the sum of its proper divisors (6004593398).

11520143242 is a wasteful number, since it uses less digits than its factorization.

11520143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107517.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 11520143242 its reverse (24234102511), we get a palindrome (35754245753).

The spelling of 11520143242 in words is "eleven billion, five hundred twenty million, one hundred forty-three thousand, two hundred forty-two".