11661212342030 has 16 divisors (see below), whose sum is σ = 21042526816944. Its totient is φ = 4652852803200.

The previous prime is 11661212342029. The next prime is 11661212342047. The reversal of 11661212342030 is 3024321216611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454012492 + ... + 1454020511.

It is an arithmetic number, because the mean of its divisors is an integer number (1315157926059).

Almost surely, 2^{11661212342030} is an apocalyptic number.

11661212342030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11661212342030 is a deficient number, since it is larger than the sum of its proper divisors (9381314474914).

11661212342030 is a wasteful number, since it uses less digits than its factorization.

11661212342030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908033411.

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 11661212342030 its reverse (3024321216611), we get a palindrome (14685533558641).

The spelling of 11661212342030 in words is "eleven trillion, six hundred sixty-one billion, two hundred twelve million, three hundred forty-two thousand, thirty".