31344114012221 has 8 divisors (see below), whose sum is σ = 31348051133784. Its totient is φ = 31340177144640.

The previous prime is 31344114012191. The next prime is 31344114012223. The reversal of 31344114012221 is 12221041144313.

It can be written as a sum of positive squares in 4 ways, for example, as 9475499932900 + 21868614079321 = 3078230^2 + 4676389^2 .

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-31344114012221 is a prime.

It is a super-4 number, since 4×31344114012221⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344114012223) 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, 368620691 + ... + 368705711.

It is an arithmetic number, because the mean of its divisors is an integer number (3918506391723).

Almost surely, 2^{31344114012221} is an apocalyptic number.

It is an amenable number.

31344114012221 is a deficient number, since it is larger than the sum of its proper divisors (3937121563).

31344114012221 is a wasteful number, since it uses less digits than its factorization.

31344114012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126991.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 31344114012221 its reverse (12221041144313), we get a palindrome (43565155156534).

The spelling of 31344114012221 in words is "thirty-one trillion, three hundred forty-four billion, one hundred fourteen million, twelve thousand, two hundred twenty-one".