124405255391 has 2 divisors, whose sum is σ = 124405255392. Its totient is φ = 124405255390.

The previous prime is 124405255379. The next prime is 124405255453. The reversal of 124405255391 is 193552504421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124405255391 - 2¹⁰ = 124405254367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124405255321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62202627695 + 62202627696.

It is an arithmetic number, because the mean of its divisors is an integer number (62202627696).

Almost surely, 2^124405255391 is an apocalyptic number.

124405255391 is a deficient number, since it is larger than the sum of its proper divisors (1).

124405255391 is an equidigital number, since it uses as much as digits as its factorization.

124405255391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 124405255391 in words is "one hundred twenty-four billion, four hundred five million, two hundred fifty-five thousand, three hundred ninety-one".