124155496813 has 2 divisors, whose sum is σ = 124155496814. Its totient is φ = 124155496812.

The previous prime is 124155496739. The next prime is 124155496873. The reversal of 124155496813 is 318694551421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120605482089 + 3550014724 = 347283^2 + 59582^2 .

It is a cyclic number.

It is not a de Polignac number, because 124155496813 - 2¹³ = 124155488621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124155496873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62077748406 + 62077748407.

It is an arithmetic number, because the mean of its divisors is an integer number (62077748407).

Almost surely, 2^124155496813 is an apocalyptic number.

It is an amenable number.

124155496813 is a deficient number, since it is larger than the sum of its proper divisors (1).

124155496813 is an equidigital number, since it uses as much as digits as its factorization.

124155496813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 49.

The spelling of 124155496813 in words is "one hundred twenty-four billion, one hundred fifty-five million, four hundred ninety-six thousand, eight hundred thirteen".