11420123203 has 8 divisors (see below), whose sum is σ = 11523623760. Its totient is φ = 11316870240.

The previous prime is 11420123191. The next prime is 11420123243. The reversal of 11420123203 is 30232102411.

It is a happy number.

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 11420123203 - 2²⁹ = 10883252291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11420123243) 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, 31401 + ... + 154357.

It is an arithmetic number, because the mean of its divisors is an integer number (1440452970).

Almost surely, 2^11420123203 is an apocalyptic number.

11420123203 is a deficient number, since it is larger than the sum of its proper divisors (103500557).

11420123203 is a wasteful number, since it uses less digits than its factorization.

11420123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123797.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11420123203 its reverse (30232102411), we get a palindrome (41652225614).

The spelling of 11420123203 in words is "eleven billion, four hundred twenty million, one hundred twenty-three thousand, two hundred three".