620430645103 has 4 divisors (see below), whose sum is σ = 626122669480. Its totient is φ = 614738620728.

The previous prime is 620430645077. The next prime is 620430645127. The reversal of 620430645103 is 301546034026.

620430645103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301546034026 = 2 ⋅150773017013.

It is a cyclic number.

It is not a de Polignac number, because 620430645103 - 2⁵ = 620430645071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620430645203) 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, 2846012025 + ... + 2846012242.

It is an arithmetic number, because the mean of its divisors is an integer number (156530667370).

Almost surely, 2^620430645103 is an apocalyptic number.

620430645103 is a deficient number, since it is larger than the sum of its proper divisors (5692024377).

620430645103 is a wasteful number, since it uses less digits than its factorization.

620430645103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5692024376.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 620430645103 its reverse (301546034026), we get a palindrome (921976679129).

The spelling of 620430645103 in words is "six hundred twenty billion, four hundred thirty million, six hundred forty-five thousand, one hundred three".