124502120513 has 2 divisors, whose sum is σ = 124502120514. Its totient is φ = 124502120512.

The previous prime is 124502120419. The next prime is 124502120543. The reversal of 124502120513 is 315021205421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122964539569 + 1537580944 = 350663^2 + 39212^2 .

It is a cyclic number.

It is not a de Polignac number, because 124502120513 - 2³⁴ = 107322251329 is a prime.

It is not a weakly prime, because it can be changed into another prime (124502120543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62251060256 + 62251060257.

It is an arithmetic number, because the mean of its divisors is an integer number (62251060257).

Almost surely, 2^124502120513 is an apocalyptic number.

It is an amenable number.

124502120513 is a deficient number, since it is larger than the sum of its proper divisors (1).

124502120513 is an equidigital number, since it uses as much as digits as its factorization.

124502120513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 124502120513 its reverse (315021205421), we get a palindrome (439523325934).

The spelling of 124502120513 in words is "one hundred twenty-four billion, five hundred two million, one hundred twenty thousand, five hundred thirteen".