31012012241 has 24 divisors (see below), whose sum is σ = 37911931200. Its totient is φ = 25261764192.

The previous prime is 31012012219. The next prime is 31012012247. The reversal of 31012012241 is 14221021013.

It is not a de Polignac number, because 31012012241 - 2⁶ = 31012012177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31012012247) 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 23 ways as a sum of consecutive naturals, for example, 120941 + ... + 276858.

It is an arithmetic number, because the mean of its divisors is an integer number (1579663800).

Almost surely, 2^31012012241 is an apocalyptic number.

It is an amenable number.

31012012241 is a deficient number, since it is larger than the sum of its proper divisors (6899918959).

31012012241 is a wasteful number, since it uses less digits than its factorization.

31012012241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397893 (or 397886 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31012012241 its reverse (14221021013), we get a palindrome (45233033254).

The spelling of 31012012241 in words is "thirty-one billion, twelve million, twelve thousand, two hundred forty-one".