64121670131 has 2 divisors, whose sum is σ = 64121670132. Its totient is φ = 64121670130.

The previous prime is 64121670089. The next prime is 64121670187. The reversal of 64121670131 is 13107612146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64121670131 - 2¹⁰ = 64121669107 is a prime.

It is a super-2 number, since 2×64121670131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64121670331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32060835065 + 32060835066.

It is an arithmetic number, because the mean of its divisors is an integer number (32060835066).

Almost surely, 2^64121670131 is an apocalyptic number.

64121670131 is a deficient number, since it is larger than the sum of its proper divisors (1).

64121670131 is an equidigital number, since it uses as much as digits as its factorization.

64121670131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 64121670131 in words is "sixty-four billion, one hundred twenty-one million, six hundred seventy thousand, one hundred thirty-one".