11404423123 has 8 divisors (see below), whose sum is σ = 12093226128. Its totient is φ = 10717615104.

The previous prime is 11404423099. The next prime is 11404423139. The reversal of 11404423123 is 32132440411.

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 11404423123 - 2²¹ = 11402325971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11404423223) 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, 486961 + ... + 509842.

It is an arithmetic number, because the mean of its divisors is an integer number (1511653266).

Almost surely, 2^11404423123 is an apocalyptic number.

11404423123 is a deficient number, since it is larger than the sum of its proper divisors (688803005).

11404423123 is an equidigital number, since it uses as much as digits as its factorization.

11404423123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997493.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 11404423123 its reverse (32132440411), we get a palindrome (43536863534).

The spelling of 11404423123 in words is "eleven billion, four hundred four million, four hundred twenty-three thousand, one hundred twenty-three".