124231121212135 has 16 divisors (see below), whose sum is σ = 170386156302336. Its totient is φ = 85181030939808.

The previous prime is 124231121212103. The next prime is 124231121212139. The reversal of 124231121212135 is 531212121132421.

It is a cyclic number.

It is not a de Polignac number, because 124231121212135 - 2⁵ = 124231121212103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124231121212097 and 124231121212106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124231121212139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124989709 + ... + 125979718.

It is an arithmetic number, because the mean of its divisors is an integer number (10649134768896).

Almost surely, 2^{124231121212135} is an apocalyptic number.

124231121212135 is a deficient number, since it is larger than the sum of its proper divisors (46155035090201).

124231121212135 is a wasteful number, since it uses less digits than its factorization.

124231121212135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250983582.

The product of its digits is 5760, while the sum is 31.

Adding to 124231121212135 its reverse (531212121132421), we get a palindrome (655443242344556).

The spelling of 124231121212135 in words is "one hundred twenty-four trillion, two hundred thirty-one billion, one hundred twenty-one million, two hundred twelve thousand, one hundred thirty-five".