11512331664442 has 16 divisors (see below), whose sum is σ = 19737451544832. Its totient is φ = 4933349969040.

The previous prime is 11512331664433. The next prime is 11512331664451. The reversal of 11512331664442 is 24446613321511.

11512331664442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11512331664433) and next prime (11512331664451).

It is a super-2 number, since 2×11512331664442² (a number of 27 digits) contains 22 as substring.

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, 42063609 + ... + 42336412.

It is an arithmetic number, because the mean of its divisors is an integer number (1233590721552).

Almost surely, 2^{11512331664442} is an apocalyptic number.

11512331664442 is a deficient number, since it is larger than the sum of its proper divisors (8225119880390).

11512331664442 is an equidigital number, since it uses as much as digits as its factorization.

11512331664442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84409773.

The product of its digits is 414720, while the sum is 43.

Adding to 11512331664442 its reverse (24446613321511), we get a palindrome (35958944985953).

The spelling of 11512331664442 in words is "eleven trillion, five hundred twelve billion, three hundred thirty-one million, six hundred sixty-four thousand, four hundred forty-two".