123215164307 has 2 divisors, whose sum is σ = 123215164308. Its totient is φ = 123215164306.

The previous prime is 123215164277. The next prime is 123215164343. The reversal of 123215164307 is 703461512321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123215164307 is a prime.

It is not a weakly prime, because it can be changed into another prime (123215167307) 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, 61607582153 + 61607582154.

It is an arithmetic number, because the mean of its divisors is an integer number (61607582154).

Almost surely, 2^123215164307 is an apocalyptic number.

123215164307 is a deficient number, since it is larger than the sum of its proper divisors (1).

123215164307 is an equidigital number, since it uses as much as digits as its factorization.

123215164307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 123215164307 its reverse (703461512321), we get a palindrome (826676676628).

The spelling of 123215164307 in words is "one hundred twenty-three billion, two hundred fifteen million, one hundred sixty-four thousand, three hundred seven".