2130421331 has 2 divisors, whose sum is σ = 2130421332. Its totient is φ = 2130421330.

The previous prime is 2130421313. The next prime is 2130421333. The reversal of 2130421331 is 1331240312.

Together with previous prime (2130421313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2130421331 - 2¹⁰ = 2130420307 is a prime.

It is a super-2 number, since 2×2130421331² = 9077390095159623122, which contains 22 as substring.

Together with 2130421333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2130421333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065210665 + 1065210666.

It is an arithmetic number, because the mean of its divisors is an integer number (1065210666).

Almost surely, 2^2130421331 is an apocalyptic number.

2130421331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130421331 is an equidigital number, since it uses as much as digits as its factorization.

2130421331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2130421331 is about 46156.4874205133. The cubic root of 2130421331 is about 1286.7331820682.

Adding to 2130421331 its reverse (1331240312), we get a palindrome (3461661643).

The spelling of 2130421331 in words is "two billion, one hundred thirty million, four hundred twenty-one thousand, three hundred thirty-one".