31124040340123 has 16 divisors (see below), whose sum is σ = 31477607019936. Its totient is φ = 30771148262400.

The previous prime is 31124040340097. The next prime is 31124040340157. The reversal of 31124040340123 is 32104304042113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31124040340123 - 2²⁵ = 31124006785691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31124040340091 and 31124040340100.

It is not an unprimeable number, because it can be changed into a prime (31124040340193) 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, 1252413648 + ... + 1252438498.

It is an arithmetic number, because the mean of its divisors is an integer number (1967350438746).

Almost surely, 2^{31124040340123} is an apocalyptic number.

31124040340123 is a deficient number, since it is larger than the sum of its proper divisors (353566679813).

31124040340123 is a wasteful number, since it uses less digits than its factorization.

31124040340123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37854.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 31124040340123 its reverse (32104304042113), we get a palindrome (63228344382236).

The spelling of 31124040340123 in words is "thirty-one trillion, one hundred twenty-four billion, forty million, three hundred forty thousand, one hundred twenty-three".