2421311213 has 2 divisors, whose sum is σ = 2421311214. Its totient is φ = 2421311212.

The previous prime is 2421311197. The next prime is 2421311219. The reversal of 2421311213 is 3121131242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1806420004 + 614891209 = 42502^2 + 24797^2 .

It is a cyclic number.

It is not a de Polignac number, because 2421311213 - 2⁴ = 2421311197 is a prime.

It is a super-3 number, since 3×2421311213³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2421311219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210655606 + 1210655607.

It is an arithmetic number, because the mean of its divisors is an integer number (1210655607).

Almost surely, 2^2421311213 is an apocalyptic number.

It is an amenable number.

2421311213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2421311213 is an equidigital number, since it uses as much as digits as its factorization.

2421311213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

The square root of 2421311213 is about 49206.8207975277. The cubic root of 2421311213 is about 1342.8171246665.

Adding to 2421311213 its reverse (3121131242), we get a palindrome (5542442455).

The spelling of 2421311213 in words is "two billion, four hundred twenty-one million, three hundred eleven thousand, two hundred thirteen".