391000111211101 has 48 divisors (see below), whose sum is σ = 469112100897792. Its totient is φ = 324701489548800.

The previous prime is 391000111211071. The next prime is 391000111211119. The reversal of 391000111211101 is 101112111000193.

It is not a de Polignac number, because 391000111211101 - 2¹⁵ = 391000111178333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391000141211101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5466433000 + ... + 5466504526.

It is an arithmetic number, because the mean of its divisors is an integer number (9773168768704).

Almost surely, 2^{391000111211101} is an apocalyptic number.

It is an amenable number.

391000111211101 is a deficient number, since it is larger than the sum of its proper divisors (78111989686691).

391000111211101 is a wasteful number, since it uses less digits than its factorization.

391000111211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84330 (or 84323 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 22.

Adding to 391000111211101 its reverse (101112111000193), we get a palindrome (492112222211294).

The spelling of 391000111211101 in words is "three hundred ninety-one trillion, one hundred eleven million, two hundred eleven thousand, one hundred one".