103405215505 has 8 divisors (see below), whose sum is σ = 129481313472. Its totient is φ = 79127469168.

The previous prime is 103405215491. The next prime is 103405215509. The reversal of 103405215505 is 505512504301.

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

It is a cyclic number.

It is not a de Polignac number, because 103405215505 - 2⁷ = 103405215377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103405215509) 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, 449587779 + ... + 449588008.

It is an arithmetic number, because the mean of its divisors is an integer number (16185164184).

Almost surely, 2^103405215505 is an apocalyptic number.

It is an amenable number.

103405215505 is a deficient number, since it is larger than the sum of its proper divisors (26076097967).

103405215505 is an equidigital number, since it uses as much as digits as its factorization.

103405215505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899175815.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 103405215505 its reverse (505512504301), we get a palindrome (608917719806).

The spelling of 103405215505 in words is "one hundred three billion, four hundred five million, two hundred fifteen thousand, five hundred five".