31331221414 has 8 divisors (see below), whose sum is σ = 49040172720. Its totient is φ = 14984497176.

The previous prime is 31331221403. The next prime is 31331221417. The reversal of 31331221414 is 41412213313.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31331221417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340556709 + ... + 340556800.

It is an arithmetic number, because the mean of its divisors is an integer number (6130021590).

Almost surely, 2^31331221414 is an apocalyptic number.

31331221414 is a deficient number, since it is larger than the sum of its proper divisors (17708951306).

31331221414 is a wasteful number, since it uses less digits than its factorization.

31331221414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681113534.

The product of its digits is 1728, while the sum is 25.

Adding to 31331221414 its reverse (41412213313), we get a palindrome (72743434727).

The spelling of 31331221414 in words is "thirty-one billion, three hundred thirty-one million, two hundred twenty-one thousand, four hundred fourteen".