11403123023 has 8 divisors (see below), whose sum is σ = 11667854400. Its totient is φ = 11140901280.

The previous prime is 11403122959. The next prime is 11403123041. The reversal of 11403123023 is 32032130411.

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 11403123023 - 2⁶ = 11403122959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11403122986 and 11403123004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403120023) 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, 618215 + ... + 636392.

It is an arithmetic number, because the mean of its divisors is an integer number (1458481800).

Almost surely, 2^11403123023 is an apocalyptic number.

11403123023 is a deficient number, since it is larger than the sum of its proper divisors (264731377).

11403123023 is a wasteful number, since it uses less digits than its factorization.

11403123023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254817.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11403123023 its reverse (32032130411), we get a palindrome (43435253434).

The spelling of 11403123023 in words is "eleven billion, four hundred three million, one hundred twenty-three thousand, twenty-three".