123500240447 has 2 divisors, whose sum is σ = 123500240448. Its totient is φ = 123500240446.

The previous prime is 123500240443. The next prime is 123500240503. The reversal of 123500240447 is 744042005321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123500240447 - 2² = 123500240443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123500240443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61750120223 + 61750120224.

It is an arithmetic number, because the mean of its divisors is an integer number (61750120224).

Almost surely, 2^123500240447 is an apocalyptic number.

123500240447 is a deficient number, since it is larger than the sum of its proper divisors (1).

123500240447 is an equidigital number, since it uses as much as digits as its factorization.

123500240447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

Adding to 123500240447 its reverse (744042005321), we get a palindrome (867542245768).

The spelling of 123500240447 in words is "one hundred twenty-three billion, five hundred million, two hundred forty thousand, four hundred forty-seven".