773031221012311 has 4 divisors (see below), whose sum is σ = 773031967262800. Its totient is φ = 773030474761824.

The previous prime is 773031221012263. The next prime is 773031221012353. The reversal of 773031221012311 is 113210122130377.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-773031221012311 is a prime.

It is a super-2 number, since 2×773031221012311² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (773031221012711) 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, 371569251 + ... + 373643908.

It is an arithmetic number, because the mean of its divisors is an integer number (193257991815700).

Almost surely, 2^{773031221012311} is an apocalyptic number.

773031221012311 is a deficient number, since it is larger than the sum of its proper divisors (746250489).

773031221012311 is a wasteful number, since it uses less digits than its factorization.

773031221012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746250488.

The product of its (nonzero) digits is 10584, while the sum is 34.

Adding to 773031221012311 its reverse (113210122130377), we get a palindrome (886241343142688).

The spelling of 773031221012311 in words is "seven hundred seventy-three trillion, thirty-one billion, two hundred twenty-one million, twelve thousand, three hundred eleven".