11403121323 has 8 divisors (see below), whose sum is σ = 16586358336. Its totient is φ = 6910982600.

The previous prime is 11403121277. The next prime is 11403121333. The reversal of 11403121323 is 32312130411.

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 11403121323 - 2¹⁰ = 11403120299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11403121323.

It is not an unprimeable number, because it can be changed into a prime (11403121333) 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, 172774533 + ... + 172774598.

It is an arithmetic number, because the mean of its divisors is an integer number (2073294792).

Almost surely, 2^11403121323 is an apocalyptic number.

11403121323 is a deficient number, since it is larger than the sum of its proper divisors (5183237013).

11403121323 is a wasteful number, since it uses less digits than its factorization.

11403121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345549145.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11403121323 its reverse (32312130411), we get a palindrome (43715251734).

The spelling of 11403121323 in words is "eleven billion, four hundred three million, one hundred twenty-one thousand, three hundred twenty-three".