2130301421 has 2 divisors, whose sum is σ = 2130301422. Its totient is φ = 2130301420.

The previous prime is 2130301417. The next prime is 2130301447. The reversal of 2130301421 is 1241030312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1334440900 + 795860521 = 36530^2 + 28211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130301421 - 2² = 2130301417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2130301421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130301471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065150710 + 1065150711.

It is an arithmetic number, because the mean of its divisors is an integer number (1065150711).

Almost surely, 2^2130301421 is an apocalyptic number.

It is an amenable number.

2130301421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130301421 is an equidigital number, since it uses as much as digits as its factorization.

2130301421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2130301421 is about 46155.1884515706. The cubic root of 2130301421 is about 1286.7090405102.

Adding to 2130301421 its reverse (1241030312), we get a palindrome (3371331733).

The spelling of 2130301421 in words is "two billion, one hundred thirty million, three hundred one thousand, four hundred twenty-one".