12111051407 has 8 divisors (see below), whose sum is σ = 14905909536. Its totient is φ = 9582370272.

The previous prime is 12111051391. The next prime is 12111051409. The reversal of 12111051407 is 70415011121.

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

It is a cyclic number.

It is not a de Polignac number, because 12111051407 - 2⁴ = 12111051391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111051409) by changing a digit.

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, 66544148 + ... + 66544329.

It is an arithmetic number, because the mean of its divisors is an integer number (1863238692).

Almost surely, 2^12111051407 is an apocalyptic number.

12111051407 is a deficient number, since it is larger than the sum of its proper divisors (2794858129).

12111051407 is a wasteful number, since it uses less digits than its factorization.

12111051407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133088497.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 12111051407 its reverse (70415011121), we get a palindrome (82526062528).

The spelling of 12111051407 in words is "twelve billion, one hundred eleven million, fifty-one thousand, four hundred seven".