191320342253 has 8 divisors (see below), whose sum is σ = 194362978368. Its totient is φ = 188300497824.

The previous prime is 191320342237. The next prime is 191320342289. The reversal of 191320342253 is 352243023191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 191320342253 - 2⁴ = 191320342237 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 (191320342223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5681000 + ... + 5714577.

It is an arithmetic number, because the mean of its divisors is an integer number (24295372296).

Almost surely, 2^191320342253 is an apocalyptic number.

It is an amenable number.

191320342253 is a deficient number, since it is larger than the sum of its proper divisors (3042636115).

191320342253 is a wasteful number, since it uses less digits than its factorization.

191320342253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395843.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 191320342253 in words is "one hundred ninety-one billion, three hundred twenty million, three hundred forty-two thousand, two hundred fifty-three".