12111403407 has 4 divisors (see below), whose sum is σ = 16148537880. Its totient is φ = 8074268936.

The previous prime is 12111403327. The next prime is 12111403439. The reversal of 12111403407 is 70430411121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12111403407 - 2¹⁶ = 12111337871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111403477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018567232 + ... + 2018567237.

It is an arithmetic number, because the mean of its divisors is an integer number (4037134470).

Almost surely, 2^12111403407 is an apocalyptic number.

12111403407 is a deficient number, since it is larger than the sum of its proper divisors (4037134473).

12111403407 is an equidigital number, since it uses as much as digits as its factorization.

12111403407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037134472.

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 12111403407 its reverse (70430411121), we get a palindrome (82541814528).

The spelling of 12111403407 in words is "twelve billion, one hundred eleven million, four hundred three thousand, four hundred seven".