31242331005 has 16 divisors (see below), whose sum is σ = 50002952064. Its totient is φ = 16657502400.

The previous prime is 31242330983. The next prime is 31242331007. The reversal of 31242331005 is 50013324213.

It is not a de Polignac number, because 31242331005 - 2²¹ = 31240233853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31242331007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265969 + ... + 364998.

It is an arithmetic number, because the mean of its divisors is an integer number (3125184504).

Almost surely, 2^31242331005 is an apocalyptic number.

It is an amenable number.

31242331005 is a deficient number, since it is larger than the sum of its proper divisors (18760621059).

31242331005 is a wasteful number, since it uses less digits than its factorization.

31242331005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634276.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 31242331005 its reverse (50013324213), we get a palindrome (81255655218).

The spelling of 31242331005 in words is "thirty-one billion, two hundred forty-two million, three hundred thirty-one thousand, five".