11302123231 has 4 divisors (see below), whose sum is σ = 12916712272. Its totient is φ = 9687534192.

The previous prime is 11302123169. The next prime is 11302123237. The reversal of 11302123231 is 13232120311.

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

It is not a de Polignac number, because 11302123231 - 2¹¹ = 11302121183 is a prime.

It is a super-2 number, since 2×11302123231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11302123199 and 11302123208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11302123237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807294510 + ... + 807294523.

It is an arithmetic number, because the mean of its divisors is an integer number (3229178068).

Almost surely, 2^11302123231 is an apocalyptic number.

11302123231 is a deficient number, since it is larger than the sum of its proper divisors (1614589041).

11302123231 is an equidigital number, since it uses as much as digits as its factorization.

11302123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614589040.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11302123231 its reverse (13232120311), we get a palindrome (24534243542).

The spelling of 11302123231 in words is "eleven billion, three hundred two million, one hundred twenty-three thousand, two hundred thirty-one".