31103132221313 has 8 divisors (see below), whose sum is σ = 31497382030080. Its totient is φ = 30708895894560.

The previous prime is 31103132221267. The next prime is 31103132221331. The reversal of 31103132221313 is 31312223130113.

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

It is a cyclic number.

It is not a de Polignac number, because 31103132221313 - 2¹⁸ = 31103131959169 is a prime.

It is a super-3 number, since 3×31103132221313³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103132221333) 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, 1313756 + ... + 7995762.

It is an arithmetic number, because the mean of its divisors is an integer number (3937172753760).

Almost surely, 2^{31103132221313} is an apocalyptic number.

It is an amenable number.

31103132221313 is a deficient number, since it is larger than the sum of its proper divisors (394249808767).

31103132221313 is an equidigital number, since it uses as much as digits as its factorization.

31103132221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6741007.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31103132221313 its reverse (31312223130113), we get a palindrome (62415355351426).

The spelling of 31103132221313 in words is "thirty-one trillion, one hundred three billion, one hundred thirty-two million, two hundred twenty-one thousand, three hundred thirteen".