27145071302123 has 2 divisors, whose sum is σ = 27145071302124. Its totient is φ = 27145071302122.

The previous prime is 27145071302029. The next prime is 27145071302161. The reversal of 27145071302123 is 32120317054172.

It is an a-pointer prime, because the next prime (27145071302161) can be obtained adding 27145071302123 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27145071302123 - 2¹⁶ = 27145071236587 is a prime.

It is not a weakly prime, because it can be changed into another prime (27145071308123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13572535651061 + 13572535651062.

It is an arithmetic number, because the mean of its divisors is an integer number (13572535651062).

Almost surely, 2^{27145071302123} is an apocalyptic number.

27145071302123 is a deficient number, since it is larger than the sum of its proper divisors (1).

27145071302123 is an equidigital number, since it uses as much as digits as its factorization.

27145071302123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

Adding to 27145071302123 its reverse (32120317054172), we get a palindrome (59265388356295).

The spelling of 27145071302123 in words is "twenty-seven trillion, one hundred forty-five billion, seventy-one million, three hundred two thousand, one hundred twenty-three".