2134202021387 has 2 divisors, whose sum is σ = 2134202021388. Its totient is φ = 2134202021386.

The previous prime is 2134202021309. The next prime is 2134202021467. The reversal of 2134202021387 is 7831202024312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2134202021387 is a prime.

It is not a weakly prime, because it can be changed into another prime (2134202021587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067101010693 + 1067101010694.

It is an arithmetic number, because the mean of its divisors is an integer number (1067101010694).

Almost surely, 2^{2134202021387} is an apocalyptic number.

2134202021387 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134202021387 is an equidigital number, since it uses as much as digits as its factorization.

2134202021387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

Adding to 2134202021387 its reverse (7831202024312), we get a palindrome (9965404045699).

The spelling of 2134202021387 in words is "two trillion, one hundred thirty-four billion, two hundred two million, twenty-one thousand, three hundred eighty-seven".