791101312231001 has 16 divisors (see below), whose sum is σ = 808507385653200. Its totient is φ = 773882870611968.

The previous prime is 791101312230997. The next prime is 791101312231063. The reversal of 791101312231001 is 100132213101197.

It can be written as a sum of positive squares in 8 ways, for example, as 15496858926025 + 775604453304976 = 3936605^2 + 27849676^2 .

It is a cyclic number.

It is not a de Polignac number, because 791101312231001 - 2² = 791101312230997 is a prime.

It is a super-2 number, since 2×791101312231001² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791121312231001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23740856 + ... + 46323113.

It is an arithmetic number, because the mean of its divisors is an integer number (50531711603325).

Almost surely, 2^{791101312231001} is an apocalyptic number.

It is an amenable number.

791101312231001 is a deficient number, since it is larger than the sum of its proper divisors (17406073422199).

791101312231001 is a wasteful number, since it uses less digits than its factorization.

791101312231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70065308.

The product of its (nonzero) digits is 2268, while the sum is 32.

Adding to 791101312231001 its reverse (100132213101197), we get a palindrome (891233525332198).

The spelling of 791101312231001 in words is "seven hundred ninety-one trillion, one hundred one billion, three hundred twelve million, two hundred thirty-one thousand, one".