31014144221 has 8 divisors (see below), whose sum is σ = 32159818200. Its totient is φ = 29873551680.

The previous prime is 31014144211. The next prime is 31014144247. The reversal of 31014144221 is 12244141013.

It can be written as a sum of positive squares in 4 ways, for example, as 1340292100 + 29673852121 = 36610^2 + 172261^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31014144221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31014144211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1257926 + ... + 1282343.

It is an arithmetic number, because the mean of its divisors is an integer number (4019977275).

Almost surely, 2^31014144221 is an apocalyptic number.

It is an amenable number.

31014144221 is a deficient number, since it is larger than the sum of its proper divisors (1145673979).

31014144221 is a wasteful number, since it uses less digits than its factorization.

31014144221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2540719.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 31014144221 its reverse (12244141013), we get a palindrome (43258285234).

The spelling of 31014144221 in words is "thirty-one billion, fourteen million, one hundred forty-four thousand, two hundred twenty-one".