31431124324113 has 32 divisors (see below), whose sum is σ = 43338091934592. Its totient is φ = 20248886592000.

The previous prime is 31431124324087. The next prime is 31431124324141. The reversal of 31431124324113 is 31142342113413.

It is a happy number.

It is not a de Polignac number, because 31431124324113 - 2¹² = 31431124320017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31431124324183) 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, 88435663 + ... + 88790363.

It is an arithmetic number, because the mean of its divisors is an integer number (1354315372956).

Almost surely, 2^{31431124324113} is an apocalyptic number.

It is an amenable number.

31431124324113 is a deficient number, since it is larger than the sum of its proper divisors (11906967610479).

31431124324113 is a wasteful number, since it uses less digits than its factorization.

31431124324113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361585.

The product of its digits is 20736, while the sum is 33.

Adding to 31431124324113 its reverse (31142342113413), we get a palindrome (62573466437526).

The spelling of 31431124324113 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred twenty-four million, three hundred twenty-four thousand, one hundred thirteen".