103131020313 has 12 divisors (see below), whose sum is σ = 154484327088. Its totient is φ = 68754013380.

The previous prime is 103131020281. The next prime is 103131020329. The reversal of 103131020313 is 313020131301.

It is a happy number.

103131020313 is a `hidden beast` number, since 10 + 31 + 310 + 2 + 0 + 313 = 666.

It is not a de Polignac number, because 103131020313 - 2⁵ = 103131020281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103131024313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212203503 + ... + 212203988.

It is an arithmetic number, because the mean of its divisors is an integer number (12873693924).

Almost surely, 2^103131020313 is an apocalyptic number.

It is an amenable number.

103131020313 is a deficient number, since it is larger than the sum of its proper divisors (51353306775).

103131020313 is an frugal number, since it uses more digits than its factorization.

103131020313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424407506 (or 424407494 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 103131020313 its reverse (313020131301), we get a palindrome (416151151614).

The spelling of 103131020313 in words is "one hundred three billion, one hundred thirty-one million, twenty thousand, three hundred thirteen".