11301011243 has 4 divisors (see below), whose sum is σ = 11302159128. Its totient is φ = 11299863360.

The previous prime is 11301011233. The next prime is 11301011257. The reversal of 11301011243 is 34211010311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34211010311 = 503 ⋅68013937.

It is a cyclic number.

It is not a de Polignac number, because 11301011243 - 2¹² = 11301007147 is a prime.

It is a super-2 number, since 2×11301011243² (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 (11301011213) 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, 559046 + ... + 578907.

It is an arithmetic number, because the mean of its divisors is an integer number (2825539782).

Almost surely, 2^11301011243 is an apocalyptic number.

11301011243 is a deficient number, since it is larger than the sum of its proper divisors (1147885).

11301011243 is an equidigital number, since it uses as much as digits as its factorization.

11301011243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147884.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11301011243 its reverse (34211010311), we get a palindrome (45512021554).

The spelling of 11301011243 in words is "eleven billion, three hundred one million, eleven thousand, two hundred forty-three".