124312385523 has 16 divisors (see below), whose sum is σ = 170335047456. Its totient is φ = 80595240960.

The previous prime is 124312385501. The next prime is 124312385537. The reversal of 124312385523 is 325583213421.

It is not a de Polignac number, because 124312385523 - 2²¹ = 124310288371 is a prime.

It is a super-4 number, since 4×124312385523⁴ (a number of 45 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (124312385123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1575990 + ... + 1652987.

It is an arithmetic number, because the mean of its divisors is an integer number (10645940466).

Almost surely, 2^124312385523 is an apocalyptic number.

124312385523 is a deficient number, since it is larger than the sum of its proper divisors (46022661933).

124312385523 is a wasteful number, since it uses less digits than its factorization.

124312385523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229334.

The product of its digits is 172800, while the sum is 39.

Adding to 124312385523 its reverse (325583213421), we get a palindrome (449895598944).

The spelling of 124312385523 in words is "one hundred twenty-four billion, three hundred twelve million, three hundred eighty-five thousand, five hundred twenty-three".