11223240361 has 2 divisors, whose sum is σ = 11223240362. Its totient is φ = 11223240360.

The previous prime is 11223240293. The next prime is 11223240383. The reversal of 11223240361 is 16304232211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10097235225 + 1126005136 = 100485^2 + 33556^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223240361 - 2¹³ = 11223232169 is a prime.

It is a super-2 number, since 2×11223240361² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11223240461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611620180 + 5611620181.

It is an arithmetic number, because the mean of its divisors is an integer number (5611620181).

Almost surely, 2^11223240361 is an apocalyptic number.

It is an amenable number.

11223240361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223240361 is an equidigital number, since it uses as much as digits as its factorization.

11223240361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 11223240361 its reverse (16304232211), we get a palindrome (27527472572).

The spelling of 11223240361 in words is "eleven billion, two hundred twenty-three million, two hundred forty thousand, three hundred sixty-one".