2151321702371 has 2 divisors, whose sum is σ = 2151321702372. Its totient is φ = 2151321702370.

The previous prime is 2151321702349. The next prime is 2151321702419. The reversal of 2151321702371 is 1732071231512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2151321702371 - 2¹⁸ = 2151321440227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2151321702571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075660851185 + 1075660851186.

It is an arithmetic number, because the mean of its divisors is an integer number (1075660851186).

Almost surely, 2^{2151321702371} is an apocalyptic number.

2151321702371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151321702371 is an equidigital number, since it uses as much as digits as its factorization.

2151321702371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

Adding to 2151321702371 its reverse (1732071231512), we get a palindrome (3883392933883).

The spelling of 2151321702371 in words is "two trillion, one hundred fifty-one billion, three hundred twenty-one million, seven hundred two thousand, three hundred seventy-one".