123545510047 has 2 divisors, whose sum is σ = 123545510048. Its totient is φ = 123545510046.

The previous prime is 123545510003. The next prime is 123545510057. The reversal of 123545510047 is 740015545321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123545510047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123545509988 and 123545510015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123545510057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61772755023 + 61772755024.

It is an arithmetic number, because the mean of its divisors is an integer number (61772755024).

Almost surely, 2^123545510047 is an apocalyptic number.

123545510047 is a deficient number, since it is larger than the sum of its proper divisors (1).

123545510047 is an equidigital number, since it uses as much as digits as its factorization.

123545510047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 123545510047 in words is "one hundred twenty-three billion, five hundred forty-five million, five hundred ten thousand, forty-seven".