2113640551291 has 8 divisors (see below), whose sum is σ = 2116286004224. Its totient is φ = 2110995492480.

The previous prime is 2113640551229. The next prime is 2113640551303. The reversal of 2113640551291 is 1921550463112.

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 2113640551291 - 2⁹ = 2113640550779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113640551591) 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, 11481331 + ... + 11663971.

It is an arithmetic number, because the mean of its divisors is an integer number (264535750528).

Almost surely, 2^{2113640551291} is an apocalyptic number.

2113640551291 is a deficient number, since it is larger than the sum of its proper divisors (2645452933).

2113640551291 is a wasteful number, since it uses less digits than its factorization.

2113640551291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197061.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 2113640551291 in words is "two trillion, one hundred thirteen billion, six hundred forty million, five hundred fifty-one thousand, two hundred ninety-one".