2381106152721 has 16 divisors (see below), whose sum is σ = 3341980938240. Its totient is φ = 1503821612880.

The previous prime is 2381106152701. The next prime is 2381106152723. The reversal of 2381106152721 is 1272516011832.

It is not a de Polignac number, because 2381106152721 - 2¹⁸ = 2381105890577 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2381106152721.

It is not an unprimeable number, because it can be changed into a prime (2381106152723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2113696 + ... + 3038078.

It is an arithmetic number, because the mean of its divisors is an integer number (208873808640).

Almost surely, 2^{2381106152721} is an apocalyptic number.

It is an amenable number.

2381106152721 is a deficient number, since it is larger than the sum of its proper divisors (960874785519).

2381106152721 is a wasteful number, since it uses less digits than its factorization.

2381106152721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969596.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 2381106152721 in words is "two trillion, three hundred eighty-one billion, one hundred six million, one hundred fifty-two thousand, seven hundred twenty-one".