1420103505 has 16 divisors (see below), whose sum is σ = 2274692544. Its totient is φ = 756546240.

The previous prime is 1420103473. The next prime is 1420103507. The reversal of 1420103505 is 5053010241.

It is not a de Polignac number, because 1420103505 - 2⁵ = 1420103473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420103507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38586 + ... + 65795.

It is an arithmetic number, because the mean of its divisors is an integer number (142168284).

Almost surely, 2^1420103505 is an apocalyptic number.

1420103505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1420103505 is a deficient number, since it is larger than the sum of its proper divisors (854589039).

1420103505 is a wasteful number, since it uses less digits than its factorization.

1420103505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105296.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1420103505 is about 37684.2607065602. The cubic root of 1420103505 is about 1124.0181734987.

Adding to 1420103505 its reverse (5053010241), we get a palindrome (6473113746).

The spelling of 1420103505 in words is "one billion, four hundred twenty million, one hundred three thousand, five hundred five".