124400511513541 has 2 divisors, whose sum is σ = 124400511513542. Its totient is φ = 124400511513540.

The previous prime is 124400511513529. The next prime is 124400511513589. The reversal of 124400511513541 is 145315115004421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112736169117441 + 11664342396100 = 10617729^2 + 3415310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124400511513541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124400511513541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124400511513041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62200255756770 + 62200255756771.

It is an arithmetic number, because the mean of its divisors is an integer number (62200255756771).

Almost surely, 2^{124400511513541} is an apocalyptic number.

It is an amenable number.

124400511513541 is a deficient number, since it is larger than the sum of its proper divisors (1).

124400511513541 is an equidigital number, since it uses as much as digits as its factorization.

124400511513541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 124400511513541 its reverse (145315115004421), we get a palindrome (269715626517962).

The spelling of 124400511513541 in words is "one hundred twenty-four trillion, four hundred billion, five hundred eleven million, five hundred thirteen thousand, five hundred forty-one".