2151534340343 has 2 divisors, whose sum is σ = 2151534340344. Its totient is φ = 2151534340342.

The previous prime is 2151534340297. The next prime is 2151534340349. The reversal of 2151534340343 is 3430434351512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2151534340343 - 2⁶ = 2151534340279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2151534340297 and 2151534340306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2151534340349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075767170171 + 1075767170172.

It is an arithmetic number, because the mean of its divisors is an integer number (1075767170172).

Almost surely, 2^{2151534340343} is an apocalyptic number.

2151534340343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151534340343 is an equidigital number, since it uses as much as digits as its factorization.

2151534340343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 2151534340343 its reverse (3430434351512), we get a palindrome (5581968691855).

The spelling of 2151534340343 in words is "two trillion, one hundred fifty-one billion, five hundred thirty-four million, three hundred forty thousand, three hundred forty-three".