103031131209 has 32 divisors (see below), whose sum is σ = 146003356800. Its totient is φ = 64403942400.

The previous prime is 103031131201. The next prime is 103031131271. The reversal of 103031131209 is 902131130301.

It is not a de Polignac number, because 103031131209 - 2³ = 103031131201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103031131201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28850394 + ... + 28853964.

It is an arithmetic number, because the mean of its divisors is an integer number (4562604900).

Almost surely, 2^103031131209 is an apocalyptic number.

It is an amenable number.

103031131209 is a deficient number, since it is larger than the sum of its proper divisors (42972225591).

103031131209 is a wasteful number, since it uses less digits than its factorization.

103031131209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561.

The product of its (nonzero) digits is 486, while the sum is 24.

The spelling of 103031131209 in words is "one hundred three billion, thirty-one million, one hundred thirty-one thousand, two hundred nine".