11431321234 has 8 divisors (see below), whose sum is σ = 18049454640. Its totient is φ = 5414836356.

The previous prime is 11431321211. The next prime is 11431321261. The reversal of 11431321234 is 43212313411.

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

It is a junction number, because it is equal to n+sod(n) for n = 11431321199 and 11431321208.

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, 150412084 + ... + 150412159.

It is an arithmetic number, because the mean of its divisors is an integer number (2256181830).

Almost surely, 2^11431321234 is an apocalyptic number.

11431321234 is a deficient number, since it is larger than the sum of its proper divisors (6618133406).

11431321234 is a wasteful number, since it uses less digits than its factorization.

11431321234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300824264.

The product of its digits is 1728, while the sum is 25.

Adding to 11431321234 its reverse (43212313411), we get a palindrome (54643634645).

The spelling of 11431321234 in words is "eleven billion, four hundred thirty-one million, three hundred twenty-one thousand, two hundred thirty-four".