31221414234 has 24 divisors (see below), whose sum is σ = 67650789492. Its totient is φ = 10406462400.

The previous prime is 31221414233. The next prime is 31221414241. The reversal of 31221414234 is 43241412213.

31221414234 is a `hidden beast` number, since 3 + 1 + 221 + 414 + 23 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 31058775225 + 162639009 = 176235^2 + 12753^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31221414198 and 31221414207.

It is not an unprimeable number, because it can be changed into a prime (31221414233) 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 11 ways as a sum of consecutive naturals, for example, 284334 + ... + 378534.

Almost surely, 2^31221414234 is an apocalyptic number.

31221414234 is an abundant number, since it is smaller than the sum of its proper divisors (36429375258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31221414234 is a wasteful number, since it uses less digits than its factorization.

31221414234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112622 (or 112619 counting only the distinct ones).

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

Adding to 31221414234 its reverse (43241412213), we get a palindrome (74462826447).

The spelling of 31221414234 in words is "thirty-one billion, two hundred twenty-one million, four hundred fourteen thousand, two hundred thirty-four".