12156335154503 has 2 divisors, whose sum is σ = 12156335154504. Its totient is φ = 12156335154502.

The previous prime is 12156335154497. The next prime is 12156335154511. The reversal of 12156335154503 is 30545153365121.

12156335154503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12156335154503 - 2³⁴ = 12139155285319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12156335154553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6078167577251 + 6078167577252.

It is an arithmetic number, because the mean of its divisors is an integer number (6078167577252).

Almost surely, 2^{12156335154503} is an apocalyptic number.

12156335154503 is a deficient number, since it is larger than the sum of its proper divisors (1).

12156335154503 is an equidigital number, since it uses as much as digits as its factorization.

12156335154503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 12156335154503 in words is "twelve trillion, one hundred fifty-six billion, three hundred thirty-five million, one hundred fifty-four thousand, five hundred three".