77011023223201 has 2 divisors, whose sum is σ = 77011023223202. Its totient is φ = 77011023223200.

The previous prime is 77011023223187. The next prime is 77011023223207. The reversal of 77011023223201 is 10232232011077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41043895715601 + 35967127507600 = 6406551^2 + 5997260^2 .

It is an emirp because it is prime and its reverse (10232232011077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77011023223201 - 2¹⁵ = 77011023190433 is a prime.

It is not a weakly prime, because it can be changed into another prime (77011023223207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38505511611600 + 38505511611601.

It is an arithmetic number, because the mean of its divisors is an integer number (38505511611601).

Almost surely, 2^{77011023223201} is an apocalyptic number.

It is an amenable number.

77011023223201 is a deficient number, since it is larger than the sum of its proper divisors (1).

77011023223201 is an equidigital number, since it uses as much as digits as its factorization.

77011023223201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 77011023223201 its reverse (10232232011077), we get a palindrome (87243255234278).

The spelling of 77011023223201 in words is "seventy-seven trillion, eleven billion, twenty-three million, two hundred twenty-three thousand, two hundred one".