124135434123 has 32 divisors (see below), whose sum is σ = 170429276160. Its totient is φ = 80324727840.

The previous prime is 124135434107. The next prime is 124135434169. The reversal of 124135434123 is 321434531421.

It is not a de Polignac number, because 124135434123 - 2⁴ = 124135434107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124135434173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19567290 + ... + 19573632.

It is an arithmetic number, because the mean of its divisors is an integer number (5325914880).

Almost surely, 2^124135434123 is an apocalyptic number.

124135434123 is a deficient number, since it is larger than the sum of its proper divisors (46293842037).

124135434123 is a wasteful number, since it uses less digits than its factorization.

124135434123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7319.

The product of its digits is 34560, while the sum is 33.

Adding to 124135434123 its reverse (321434531421), we get a palindrome (445569965544).

The spelling of 124135434123 in words is "one hundred twenty-four billion, one hundred thirty-five million, four hundred thirty-four thousand, one hundred twenty-three".