103420553 has 4 divisors (see below), whose sum is σ = 108863760. Its totient is φ = 97977348.

The previous prime is 103420511. The next prime is 103420607. The reversal of 103420553 is 355024301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103420553 - 2⁸ = 103420297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103420853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2721575 + ... + 2721612.

It is an arithmetic number, because the mean of its divisors is an integer number (27215940).

Almost surely, 2^103420553 is an apocalyptic number.

It is an amenable number.

103420553 is a deficient number, since it is larger than the sum of its proper divisors (5443207).

103420553 is an equidigital number, since it uses as much as digits as its factorization.

103420553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443206.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 103420553 is about 10169.5896180721. The cubic root of 103420553 is about 469.3919297996.

Adding to 103420553 its reverse (355024301), we get a palindrome (458444854).

The spelling of 103420553 in words is "one hundred three million, four hundred twenty thousand, five hundred fifty-three".