12400311134 has 4 divisors (see below), whose sum is σ = 18600466704. Its totient is φ = 6200155566.

The previous prime is 12400311097. The next prime is 12400311167. The reversal of 12400311134 is 43111300421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3100077782 + ... + 3100077785.

It is an arithmetic number, because the mean of its divisors is an integer number (4650116676).

Almost surely, 2^12400311134 is an apocalyptic number.

12400311134 is a deficient number, since it is larger than the sum of its proper divisors (6200155570).

12400311134 is an equidigital number, since it uses as much as digits as its factorization.

12400311134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200155569.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12400311134 its reverse (43111300421), we get a palindrome (55511611555).

The spelling of 12400311134 in words is "twelve billion, four hundred million, three hundred eleven thousand, one hundred thirty-four".