124161115513 has 2 divisors, whose sum is σ = 124161115514. Its totient is φ = 124161115512.

The previous prime is 124161115501. The next prime is 124161115601. The reversal of 124161115513 is 315511161421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100878017769 + 23283097744 = 317613^2 + 152588^2 .

It is a cyclic number.

It is not a de Polignac number, because 124161115513 - 2¹³ = 124161107321 is a prime.

It is not a weakly prime, because it can be changed into another prime (124161119513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62080557756 + 62080557757.

It is an arithmetic number, because the mean of its divisors is an integer number (62080557757).

Almost surely, 2^124161115513 is an apocalyptic number.

It is an amenable number.

124161115513 is a deficient number, since it is larger than the sum of its proper divisors (1).

124161115513 is an equidigital number, since it uses as much as digits as its factorization.

124161115513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 31.

Adding to 124161115513 its reverse (315511161421), we get a palindrome (439672276934).

The spelling of 124161115513 in words is "one hundred twenty-four billion, one hundred sixty-one million, one hundred fifteen thousand, five hundred thirteen".