31212333242 has 8 divisors (see below), whose sum is σ = 46854825300. Its totient is φ = 15594058144.

The previous prime is 31212333227. The next prime is 31212333253. The reversal of 31212333242 is 24233321213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30790071841 + 422261401 = 175471^2 + 20549^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6051017 + ... + 6056172.

Almost surely, 2^31212333242 is an apocalyptic number.

31212333242 is a deficient number, since it is larger than the sum of its proper divisors (15642492058).

31212333242 is a wasteful number, since it uses less digits than its factorization.

31212333242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12108480.

The product of its digits is 5184, while the sum is 26.

Adding to 31212333242 its reverse (24233321213), we get a palindrome (55445654455).

The spelling of 31212333242 in words is "thirty-one billion, two hundred twelve million, three hundred thirty-three thousand, two hundred forty-two".