11431213123 has 8 divisors (see below), whose sum is σ = 12471561216. Its totient is φ = 10391056200.

The previous prime is 11431213093. The next prime is 11431213163. The reversal of 11431213123 is 32131213411.

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 11431213123 - 2²⁹ = 10894342211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11431213094 and 11431213103.

It is not an unprimeable number, because it can be changed into a prime (11431213163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96090 + ... + 179152.

It is an arithmetic number, because the mean of its divisors is an integer number (1558945152).

Almost surely, 2^11431213123 is an apocalyptic number.

11431213123 is a deficient number, since it is larger than the sum of its proper divisors (1040348093).

11431213123 is a wasteful number, since it uses less digits than its factorization.

11431213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95585.

The product of its digits is 432, while the sum is 22.

Adding to 11431213123 its reverse (32131213411), we get a palindrome (43562426534).

The spelling of 11431213123 in words is "eleven billion, four hundred thirty-one million, two hundred thirteen thousand, one hundred twenty-three".