124021100513 has 2 divisors, whose sum is σ = 124021100514. Its totient is φ = 124021100512.

The previous prime is 124021100431. The next prime is 124021100527. The reversal of 124021100513 is 315001120421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115853098384 + 8168002129 = 340372^2 + 90377^2 .

It is a cyclic number.

It is not a de Polignac number, because 124021100513 - 2¹⁸ = 124020838369 is a prime.

It is not a weakly prime, because it can be changed into another prime (124021100713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62010550256 + 62010550257.

It is an arithmetic number, because the mean of its divisors is an integer number (62010550257).

Almost surely, 2^124021100513 is an apocalyptic number.

It is an amenable number.

124021100513 is a deficient number, since it is larger than the sum of its proper divisors (1).

124021100513 is an equidigital number, since it uses as much as digits as its factorization.

124021100513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 124021100513 its reverse (315001120421), we get a palindrome (439022220934).

The spelling of 124021100513 in words is "one hundred twenty-four billion, twenty-one million, one hundred thousand, five hundred thirteen".