2134242421393 has 2 divisors, whose sum is σ = 2134242421394. Its totient is φ = 2134242421392.

The previous prime is 2134242421391. The next prime is 2134242421403. The reversal of 2134242421393 is 3931242424312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1852135908624 + 282106512769 = 1360932^2 + 531137^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134242421393 - 2¹ = 2134242421391 is a prime.

Together with 2134242421391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2134242421391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067121210696 + 1067121210697.

It is an arithmetic number, because the mean of its divisors is an integer number (1067121210697).

Almost surely, 2^{2134242421393} is an apocalyptic number.

It is an amenable number.

2134242421393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134242421393 is an equidigital number, since it uses as much as digits as its factorization.

2134242421393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 40.

The spelling of 2134242421393 in words is "two trillion, one hundred thirty-four billion, two hundred forty-two million, four hundred twenty-one thousand, three hundred ninety-three".