77321310111311 has 12 divisors (see below), whose sum is σ = 92138982783120. Its totient is φ = 64658935283040.

The previous prime is 77321310111259. The next prime is 77321310111317. The reversal of 77321310111311 is 11311101312377.

It is not a de Polignac number, because 77321310111311 - 2¹⁸ = 77321309849167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77321310111317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19243728731 + ... + 19243732748.

It is an arithmetic number, because the mean of its divisors is an integer number (7678248565260).

Almost surely, 2^{77321310111311} is an apocalyptic number.

77321310111311 is a deficient number, since it is larger than the sum of its proper divisors (14817672671809).

77321310111311 is a wasteful number, since it uses less digits than its factorization.

77321310111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38487461534 (or 38487461527 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 32.

Adding to 77321310111311 its reverse (11311101312377), we get a palindrome (88632411423688).

The spelling of 77321310111311 in words is "seventy-seven trillion, three hundred twenty-one billion, three hundred ten million, one hundred eleven thousand, three hundred eleven".