391233444332241 has 16 divisors (see below), whose sum is σ = 596596939534208. Its totient is φ = 223400084054400.

The previous prime is 391233444332233. The next prime is 391233444332243. The reversal of 391233444332241 is 142233444332193.

It is not a de Polignac number, because 391233444332241 - 2³ = 391233444332233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (391233444332243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6745142620 + ... + 6745200621.

It is an arithmetic number, because the mean of its divisors is an integer number (37287308720888).

Almost surely, 2^{391233444332241} is an apocalyptic number.

It is an amenable number.

391233444332241 is a deficient number, since it is larger than the sum of its proper divisors (205363495201967).

391233444332241 is a wasteful number, since it uses less digits than its factorization.

391233444332241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13490344632.

The product of its digits is 4478976, while the sum is 48.

Subtracting from 391233444332241 its sum of digits (48), we obtain a palindrome (391233444332193).

The spelling of 391233444332241 in words is "three hundred ninety-one trillion, two hundred thirty-three billion, four hundred forty-four million, three hundred thirty-two thousand, two hundred forty-one".