103131313331 has 4 divisors (see below), whose sum is σ = 109197861192. Its totient is φ = 97064765472.

The previous prime is 103131313319. The next prime is 103131313343. The reversal of 103131313331 is 133313131301.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (103131313319) and next prime (103131313343).

It is a cyclic number.

It is not a de Polignac number, because 103131313331 - 2¹⁸ = 103131051187 is a prime.

It is a super-2 number, since 2×103131313331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103131313297 and 103131313306.

It is not an unprimeable number, because it can be changed into a prime (103131313301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3033273905 + ... + 3033273938.

It is an arithmetic number, because the mean of its divisors is an integer number (27299465298).

Almost surely, 2^103131313331 is an apocalyptic number.

103131313331 is a deficient number, since it is larger than the sum of its proper divisors (6066547861).

103131313331 is an equidigital number, since it uses as much as digits as its factorization.

103131313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6066547860.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 103131313331 its reverse (133313131301), we get a palindrome (236444444632).

The spelling of 103131313331 in words is "one hundred three billion, one hundred thirty-one million, three hundred thirteen thousand, three hundred thirty-one".