5340208121 has 2 divisors, whose sum is σ = 5340208122. Its totient is φ = 5340208120.

The previous prime is 5340208091. The next prime is 5340208123. The reversal of 5340208121 is 1218020435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5035321600 + 304886521 = 70960^2 + 17461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5340208121 is a prime.

Together with 5340208123, 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 (5340208123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2670104060 + 2670104061.

It is an arithmetic number, because the mean of its divisors is an integer number (2670104061).

Almost surely, 2^5340208121 is an apocalyptic number.

It is an amenable number.

5340208121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5340208121 is an equidigital number, since it uses as much as digits as its factorization.

5340208121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 5340208121 is about 73076.7276292528. The cubic root of 5340208121 is about 1747.9113171682.

Adding to 5340208121 its reverse (1218020435), we get a palindrome (6558228556).

The spelling of 5340208121 in words is "five billion, three hundred forty million, two hundred eight thousand, one hundred twenty-one".