11210312243 has 4 divisors (see below), whose sum is σ = 12072643968. Its totient is φ = 10347980520.

The previous prime is 11210312203. The next prime is 11210312257. The reversal of 11210312243 is 34221301211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34221301211 = 131449 ⋅260339.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11210312243 is a prime.

It is a super-2 number, since 2×11210312243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11210312203) 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, 431165843 + ... + 431165868.

It is an arithmetic number, because the mean of its divisors is an integer number (3018160992).

Almost surely, 2^11210312243 is an apocalyptic number.

11210312243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11210312243 is a deficient number, since it is larger than the sum of its proper divisors (862331725).

11210312243 is an equidigital number, since it uses as much as digits as its factorization.

11210312243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862331724.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11210312243 its reverse (34221301211), we get a palindrome (45431613454).

The spelling of 11210312243 in words is "eleven billion, two hundred ten million, three hundred twelve thousand, two hundred forty-three".