103131021331 has 32 divisors (see below), whose sum is σ = 114407536320. Its totient is φ = 92375023104.

The previous prime is 103131021317. The next prime is 103131021403. The reversal of 103131021331 is 133120131301.

It is not a de Polignac number, because 103131021331 - 2¹⁷ = 103130890259 is a prime.

It is a super-2 number, since 2×103131021331² (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 = 103131021299 and 103131021308.

It is not an unprimeable number, because it can be changed into a prime (103131021731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59854636 + ... + 59856358.

It is an arithmetic number, because the mean of its divisors is an integer number (3575235510).

Almost surely, 2^103131021331 is an apocalyptic number.

103131021331 is a deficient number, since it is larger than the sum of its proper divisors (11276514989).

103131021331 is a wasteful number, since it uses less digits than its factorization.

103131021331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2695.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 103131021331 its reverse (133120131301), we get a palindrome (236251152632).

The spelling of 103131021331 in words is "one hundred three billion, one hundred thirty-one million, twenty-one thousand, three hundred thirty-one".