31424241213 has 12 divisors (see below), whose sum is σ = 45394799580. Its totient is φ = 20947542336.

The previous prime is 31424241157. The next prime is 31424241223. The reversal of 31424241213 is 31214242413.

31424241213 is a `hidden beast` number, since 3 + 1 + 4 + 242 + 412 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1674200889 + 29750040324 = 40917^2 + 172482^2 .

It is not a de Polignac number, because 31424241213 - 2¹⁷ = 31424110141 is a prime.

It is a super-2 number, since 2×31424241213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424241223) 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, 57078 + ... + 257111.

It is an arithmetic number, because the mean of its divisors is an integer number (3782899965).

Almost surely, 2^31424241213 is an apocalyptic number.

It is an amenable number.

31424241213 is a deficient number, since it is larger than the sum of its proper divisors (13970558367).

31424241213 is a wasteful number, since it uses less digits than its factorization.

31424241213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325308 (or 325305 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 31424241213 its reverse (31214242413), we get a palindrome (62638483626).

The spelling of 31424241213 in words is "thirty-one billion, four hundred twenty-four million, two hundred forty-one thousand, two hundred thirteen".