3121420063 has 2 divisors, whose sum is σ = 3121420064. Its totient is φ = 3121420062.

The previous prime is 3121420037. The next prime is 3121420129. The reversal of 3121420063 is 3600241213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121420063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3121421063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560710031 + 1560710032.

It is an arithmetic number, because the mean of its divisors is an integer number (1560710032).

Almost surely, 2^3121420063 is an apocalyptic number.

3121420063 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121420063 is an equidigital number, since it uses as much as digits as its factorization.

3121420063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 3121420063 is about 55869.6703319431. The cubic root of 3121420063 is about 1461.4503731561.

Adding to 3121420063 its reverse (3600241213), we get a palindrome (6721661276).

The spelling of 3121420063 in words is "three billion, one hundred twenty-one million, four hundred twenty thousand, sixty-three".