31243301320103 has 8 divisors (see below), whose sum is σ = 31339167375600. Its totient is φ = 31147476836608.

The previous prime is 31243301320097. The next prime is 31243301320199. The reversal of 31243301320103 is 30102310334213.

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 31243301320103 - 2⁴ = 31243301320087 is a prime.

It is a super-4 number, since 4×31243301320103⁴ (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 (31243301320603) 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, 8887268 + ... + 11894121.

It is an arithmetic number, because the mean of its divisors is an integer number (3917395921950).

Almost surely, 2^{31243301320103} is an apocalyptic number.

31243301320103 is a deficient number, since it is larger than the sum of its proper divisors (95866055497).

31243301320103 is a wasteful number, since it uses less digits than its factorization.

31243301320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20786001.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31243301320103 its reverse (30102310334213), we get a palindrome (61345611654316).

The spelling of 31243301320103 in words is "thirty-one trillion, two hundred forty-three billion, three hundred one million, three hundred twenty thousand, one hundred three".