391133121331193 has 32 divisors (see below), whose sum is σ = 409575340753920. Its totient is φ = 373255845949440.

The previous prime is 391133121331177. The next prime is 391133121331201.

It is a happy number.

391133121331193 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 391133121331193 - 2⁴ = 391133121331177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (391133121331153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111554948 + ... + 115007706.

It is an arithmetic number, because the mean of its divisors is an integer number (12799229398560).

Almost surely, 2^{391133121331193} is an apocalyptic number.

It is an amenable number.

391133121331193 is a deficient number, since it is larger than the sum of its proper divisors (18442219422727).

391133121331193 is a wasteful number, since it uses less digits than its factorization.

391133121331193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453257.

The product of its digits is 118098, while the sum is 44.

The spelling of 391133121331193 in words is "three hundred ninety-one trillion, one hundred thirty-three billion, one hundred twenty-one million, three hundred thirty-one thousand, one hundred ninety-three".