2151321702382 has 4 divisors (see below), whose sum is σ = 3226982553576. Its totient is φ = 1075660851190.

The previous prime is 2151321702371. The next prime is 2151321702419. The reversal of 2151321702382 is 2832071231512.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 537830425594 + ... + 537830425597.

It is an arithmetic number, because the mean of its divisors is an integer number (806745638394).

Almost surely, 2^{2151321702382} is an apocalyptic number.

2151321702382 is a deficient number, since it is larger than the sum of its proper divisors (1075660851194).

2151321702382 is a wasteful number, since it uses less digits than its factorization.

2151321702382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075660851193.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 2151321702382 its reverse (2832071231512), we get a palindrome (4983392933894).

The spelling of 2151321702382 in words is "two trillion, one hundred fifty-one billion, three hundred twenty-one million, seven hundred two thousand, three hundred eighty-two".