15212314123 has 2 divisors, whose sum is σ = 15212314124. Its totient is φ = 15212314122.

The previous prime is 15212314087. The next prime is 15212314163. The reversal of 15212314123 is 32141321251.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15212314123 is a prime.

It is not a weakly prime, because it can be changed into another prime (15212314163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606157061 + 7606157062.

It is an arithmetic number, because the mean of its divisors is an integer number (7606157062).

Almost surely, 2^15212314123 is an apocalyptic number.

15212314123 is a deficient number, since it is larger than the sum of its proper divisors (1).

15212314123 is an equidigital number, since it uses as much as digits as its factorization.

15212314123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

Adding to 15212314123 its reverse (32141321251), we get a palindrome (47353635374).

The spelling of 15212314123 in words is "fifteen billion, two hundred twelve million, three hundred fourteen thousand, one hundred twenty-three".