103405431655 has 8 divisors (see below), whose sum is σ = 125315097984. Its totient is φ = 81905292000.

The previous prime is 103405431643. The next prime is 103405431749. The reversal of 103405431655 is 556134504301.

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

It is not a de Polignac number, because 103405431655 - 2¹⁹ = 103404907367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 102381111 + ... + 102382120.

It is an arithmetic number, because the mean of its divisors is an integer number (15664387248).

Almost surely, 2^103405431655 is an apocalyptic number.

103405431655 is a deficient number, since it is larger than the sum of its proper divisors (21909666329).

103405431655 is a wasteful number, since it uses less digits than its factorization.

103405431655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204763337.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 103405431655 its reverse (556134504301), we get a palindrome (659539935956).

The spelling of 103405431655 in words is "one hundred three billion, four hundred five million, four hundred thirty-one thousand, six hundred fifty-five".