11920293191 has 8 divisors (see below), whose sum is σ = 12443954400. Its totient is φ = 11397080992.

The previous prime is 11920293181. The next prime is 11920293211. The reversal of 11920293191 is 19139202911.

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 11920293191 - 2⁶ = 11920293127 is a prime.

It is a super-3 number, since 3×11920293191³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920293181) 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, 57416 + ... + 164733.

It is an arithmetic number, because the mean of its divisors is an integer number (1555494300).

Almost surely, 2^11920293191 is an apocalyptic number.

11920293191 is a deficient number, since it is larger than the sum of its proper divisors (523661209).

11920293191 is a wasteful number, since it uses less digits than its factorization.

11920293191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224505.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 11920293191 in words is "eleven billion, nine hundred twenty million, two hundred ninety-three thousand, one hundred ninety-one".