2134302420421 has 2 divisors, whose sum is σ = 2134302420422. Its totient is φ = 2134302420420.

The previous prime is 2134302420389. The next prime is 2134302420461. The reversal of 2134302420421 is 1240242034312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1162323328321 + 971979092100 = 1078111^2 + 985890^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134302420421 - 2⁵ = 2134302420389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2134302420421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2134302420461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067151210210 + 1067151210211.

It is an arithmetic number, because the mean of its divisors is an integer number (1067151210211).

Almost surely, 2^{2134302420421} is an apocalyptic number.

It is an amenable number.

2134302420421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134302420421 is an equidigital number, since it uses as much as digits as its factorization.

2134302420421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 2134302420421 its reverse (1240242034312), we get a palindrome (3374544454733).

The spelling of 2134302420421 in words is "two trillion, one hundred thirty-four billion, three hundred two million, four hundred twenty thousand, four hundred twenty-one".