103205131 has 8 divisors (see below), whose sum is σ = 109209600. Its totient is φ = 97257960.

The previous prime is 103205129. The next prime is 103205149. The reversal of 103205131 is 131502301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103205131 - 2¹ = 103205129 is a prime.

It is a super-2 number, since 2×103205131² = 21302598129454322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103205161) 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, 10591 + ... + 17848.

It is an arithmetic number, because the mean of its divisors is an integer number (13651200).

Almost surely, 2^103205131 is an apocalyptic number.

103205131 is a deficient number, since it is larger than the sum of its proper divisors (6004469).

103205131 is a wasteful number, since it uses less digits than its factorization.

103205131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28649.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 103205131 is about 10158.9926173809. The cubic root of 103205131 is about 469.0657933439.

Adding to 103205131 its reverse (131502301), we get a palindrome (234707432).

It can be divided in two parts, 10320 and 5131, that added together give a palindrome (15451).

The spelling of 103205131 in words is "one hundred three million, two hundred five thousand, one hundred thirty-one".