12354145115203 has 2 divisors, whose sum is σ = 12354145115204. Its totient is φ = 12354145115202.

The previous prime is 12354145115171. The next prime is 12354145115233. The reversal of 12354145115203 is 30251154145321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12354145115203 - 2⁵ = 12354145115171 is a prime.

It is a super-2 number, since 2×12354145115203² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12354145115233) 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, 6177072557601 + 6177072557602.

It is an arithmetic number, because the mean of its divisors is an integer number (6177072557602).

Almost surely, 2^{12354145115203} is an apocalyptic number.

12354145115203 is a deficient number, since it is larger than the sum of its proper divisors (1).

12354145115203 is an equidigital number, since it uses as much as digits as its factorization.

12354145115203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 12354145115203 in words is "twelve trillion, three hundred fifty-four billion, one hundred forty-five million, one hundred fifteen thousand, two hundred three".