12523128234499 has 2 divisors, whose sum is σ = 12523128234500. Its totient is φ = 12523128234498.

The previous prime is 12523128234473. The next prime is 12523128234541. The reversal of 12523128234499 is 99443282132521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12523128234499 - 2¹³ = 12523128226307 is a prime.

It is not a weakly prime, because it can be changed into another prime (12523128232499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261564117249 + 6261564117250.

It is an arithmetic number, because the mean of its divisors is an integer number (6261564117250).

Almost surely, 2^{12523128234499} is an apocalyptic number.

12523128234499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12523128234499 is an equidigital number, since it uses as much as digits as its factorization.

12523128234499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 55.

The spelling of 12523128234499 in words is "twelve trillion, five hundred twenty-three billion, one hundred twenty-eight million, two hundred thirty-four thousand, four hundred ninety-nine".