31121320214 has 8 divisors (see below), whose sum is σ = 46714789920. Its totient is φ = 15549723576.

The previous prime is 31121320207. The next prime is 31121320253. The reversal of 31121320214 is 41202312113.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5464709 + ... + 5470400.

It is an arithmetic number, because the mean of its divisors is an integer number (5839348740).

Almost surely, 2^31121320214 is an apocalyptic number.

31121320214 is a deficient number, since it is larger than the sum of its proper divisors (15593469706).

31121320214 is a wasteful number, since it uses less digits than its factorization.

31121320214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10936534.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31121320214 its reverse (41202312113), we get a palindrome (72323632327).

The spelling of 31121320214 in words is "thirty-one billion, one hundred twenty-one million, three hundred twenty thousand, two hundred fourteen".