31210421241 has 16 divisors (see below), whose sum is σ = 42193090304. Its totient is φ = 20517473664.

The previous prime is 31210421239. The next prime is 31210421257. The reversal of 31210421241 is 14212401213.

It is not a de Polignac number, because 31210421241 - 2¹ = 31210421239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31212421241) 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, 1224075 + ... + 1249311.

It is an arithmetic number, because the mean of its divisors is an integer number (2637068144).

Almost surely, 2^31210421241 is an apocalyptic number.

It is an amenable number.

31210421241 is a deficient number, since it is larger than the sum of its proper divisors (10982669063).

31210421241 is a wasteful number, since it uses less digits than its factorization.

31210421241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30960.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 31210421241 its reverse (14212401213), we get a palindrome (45422822454).

The spelling of 31210421241 in words is "thirty-one billion, two hundred ten million, four hundred twenty-one thousand, two hundred forty-one".