12111007387730 has 8 divisors (see below), whose sum is σ = 21799813297932. Its totient is φ = 4844402955088.

The previous prime is 12111007387663. The next prime is 12111007387799. The reversal of 12111007387730 is 3778370011121.

It can be written as a sum of positive squares in 2 ways, for example, as 12032566502401 + 78440885329 = 3468799^2 + 280073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605550369377 + ... + 605550369396.

Almost surely, 2^{12111007387730} is an apocalyptic number.

12111007387730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111007387730 is a deficient number, since it is larger than the sum of its proper divisors (9688805910202).

12111007387730 is a wasteful number, since it uses less digits than its factorization.

12111007387730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211100738780.

The product of its (nonzero) digits is 49392, while the sum is 41.

Adding to 12111007387730 its reverse (3778370011121), we get a palindrome (15889377398851).

The spelling of 12111007387730 in words is "twelve trillion, one hundred eleven billion, seven million, three hundred eighty-seven thousand, seven hundred thirty".