11420304231 has 8 divisors (see below), whose sum is σ = 17402368384. Its totient is φ = 6525888120.

The previous prime is 11420304229. The next prime is 11420304263. The reversal of 11420304231 is 13240302411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11420304231 - 2¹ = 11420304229 is a prime.

It is a super-2 number, since 2×11420304231² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 543824011 = 11420304231 / (1 + 1 + 4 + 2 + 0 + 3 + 0 + 4 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11420304198 and 11420304207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420304211) 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, 271911985 + ... + 271912026.

It is an arithmetic number, because the mean of its divisors is an integer number (2175296048).

Almost surely, 2^11420304231 is an apocalyptic number.

11420304231 is a deficient number, since it is larger than the sum of its proper divisors (5982064153).

11420304231 is an equidigital number, since it uses as much as digits as its factorization.

11420304231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543824021.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11420304231 its reverse (13240302411), we get a palindrome (24660606642).

The spelling of 11420304231 in words is "eleven billion, four hundred twenty million, three hundred four thousand, two hundred thirty-one".