124040035531 has 2 divisors, whose sum is σ = 124040035532. Its totient is φ = 124040035530.

The previous prime is 124040035517. The next prime is 124040035589. The reversal of 124040035531 is 135530040421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124040035531 - 2¹¹ = 124040033483 is a prime.

It is a super-2 number, since 2×124040035531² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124040035531.

It is not a weakly prime, because it can be changed into another prime (124040035591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62020017765 + 62020017766.

It is an arithmetic number, because the mean of its divisors is an integer number (62020017766).

Almost surely, 2^124040035531 is an apocalyptic number.

124040035531 is a deficient number, since it is larger than the sum of its proper divisors (1).

124040035531 is an equidigital number, since it uses as much as digits as its factorization.

124040035531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 124040035531 its reverse (135530040421), we get a palindrome (259570075952).

The spelling of 124040035531 in words is "one hundred twenty-four billion, forty million, thirty-five thousand, five hundred thirty-one".