31242041431321 has 16 divisors (see below), whose sum is σ = 35724848946048. Its totient is φ = 26764152105600.

The previous prime is 31242041431267. The next prime is 31242041431339. The reversal of 31242041431321 is 12313414024213.

It is a happy number.

It is not a de Polignac number, because 31242041431321 - 2¹¹ = 31242041429273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31242041434321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110094106 + ... + 110377516.

It is an arithmetic number, because the mean of its divisors is an integer number (2232803059128).

Almost surely, 2^{31242041431321} is an apocalyptic number.

It is an amenable number.

31242041431321 is a deficient number, since it is larger than the sum of its proper divisors (4482807514727).

31242041431321 is a wasteful number, since it uses less digits than its factorization.

31242041431321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292032.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 31242041431321 its reverse (12313414024213), we get a palindrome (43555455455534).

The spelling of 31242041431321 in words is "thirty-one trillion, two hundred forty-two billion, forty-one million, four hundred thirty-one thousand, three hundred twenty-one".