11303420123 has 4 divisors (see below), whose sum is σ = 11303633880. Its totient is φ = 11303206368.

The previous prime is 11303420111. The next prime is 11303420143. The reversal of 11303420123 is 32102430311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11303420123 - 2¹⁴ = 11303403739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11303420095 and 11303420104.

It is not an unprimeable number, because it can be changed into a prime (11303420143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37043 + ... + 154851.

It is an arithmetic number, because the mean of its divisors is an integer number (2825908470).

Almost surely, 2^11303420123 is an apocalyptic number.

11303420123 is a deficient number, since it is larger than the sum of its proper divisors (213757).

11303420123 is an equidigital number, since it uses as much as digits as its factorization.

11303420123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213756.

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

Adding to 11303420123 its reverse (32102430311), we get a palindrome (43405850434).

The spelling of 11303420123 in words is "eleven billion, three hundred three million, four hundred twenty thousand, one hundred twenty-three".