11223213077 has 2 divisors, whose sum is σ = 11223213078. Its totient is φ = 11223213076.

The previous prime is 11223213011. The next prime is 11223213137. The reversal of 11223213077 is 77031232211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6955726801 + 4267486276 = 83401^2 + 65326^2 .

It is a cyclic number.

It is not a de Polignac number, because 11223213077 - 2⁸ = 11223212821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11223213277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611606538 + 5611606539.

It is an arithmetic number, because the mean of its divisors is an integer number (5611606539).

Almost surely, 2^11223213077 is an apocalyptic number.

It is an amenable number.

11223213077 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223213077 is an equidigital number, since it uses as much as digits as its factorization.

11223213077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

Adding to 11223213077 its reverse (77031232211), we get a palindrome (88254445288).

The spelling of 11223213077 in words is "eleven billion, two hundred twenty-three million, two hundred thirteen thousand, seventy-seven".