31201320103 has 8 divisors (see below), whose sum is σ = 31453435728. Its totient is φ = 30950137344.

The previous prime is 31201320089. The next prime is 31201320113. The reversal of 31201320103 is 30102310213.

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 31201320103 - 2¹⁷ = 31201189031 is a prime.

It is a super-4 number, since 4×31201320103⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201320113) 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, 165976 + ... + 299917.

It is an arithmetic number, because the mean of its divisors is an integer number (3931679466).

Almost surely, 2^31201320103 is an apocalyptic number.

31201320103 is a deficient number, since it is larger than the sum of its proper divisors (252115625).

31201320103 is a wasteful number, since it uses less digits than its factorization.

31201320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466433.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31201320103 its reverse (30102310213), we get a palindrome (61303630316).

The spelling of 31201320103 in words is "thirty-one billion, two hundred one million, three hundred twenty thousand, one hundred three".