1206381321071 has 8 divisors (see below), whose sum is σ = 1247993157600. Its totient is φ = 1164770316640.

The previous prime is 1206381321049. The next prime is 1206381321199. The reversal of 1206381321071 is 1701231836021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1206381321071 is a prime.

It is a super-2 number, since 2×1206381321071² (a number of 25 digits) contains 22 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 (1206381321011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4723181 + ... + 4972041.

It is an arithmetic number, because the mean of its divisors is an integer number (155999144700).

Almost surely, 2^{1206381321071} is an apocalyptic number.

1206381321071 is a deficient number, since it is larger than the sum of its proper divisors (41611836529).

1206381321071 is a wasteful number, since it uses less digits than its factorization.

1206381321071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416049.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 1206381321071 in words is "one trillion, two hundred six billion, three hundred eighty-one million, three hundred twenty-one thousand, seventy-one".