31244413211 has 12 divisors (see below), whose sum is σ = 35527279200. Its totient is φ = 27424560240.

The previous prime is 31244413199. The next prime is 31244413217. The reversal of 31244413211 is 11231444213.

It is not a de Polignac number, because 31244413211 - 2¹⁸ = 31244151067 is a prime.

It is a super-2 number, since 2×31244413211² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31244413217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4448531 + ... + 4455548.

It is an arithmetic number, because the mean of its divisors is an integer number (2960606600).

Almost surely, 2^31244413211 is an apocalyptic number.

31244413211 is a deficient number, since it is larger than the sum of its proper divisors (4282865989).

31244413211 is a wasteful number, since it uses less digits than its factorization.

31244413211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8904130 (or 8904119 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

Adding to 31244413211 its reverse (11231444213), we get a palindrome (42475857424).

The spelling of 31244413211 in words is "thirty-one billion, two hundred forty-four million, four hundred thirteen thousand, two hundred eleven".