1020302123 has 4 divisors (see below), whose sum is σ = 1020391680. Its totient is φ = 1020212568.

The previous prime is 1020302119. The next prime is 1020302159. The reversal of 1020302123 is 3212030201.

It is a happy number.

1020302123 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1020302123 - 2² = 1020302119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020302098 and 1020302107.

It is not an unprimeable number, because it can be changed into a prime (1020302113) 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, 24683 + ... + 51476.

It is an arithmetic number, because the mean of its divisors is an integer number (255097920).

Almost surely, 2^1020302123 is an apocalyptic number.

1020302123 is a deficient number, since it is larger than the sum of its proper divisors (89557).

1020302123 is an equidigital number, since it uses as much as digits as its factorization.

1020302123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89556.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1020302123 is about 31942.1684141825. The cubic root of 1020302123 is about 1006.7220866355.

Adding to 1020302123 its reverse (3212030201), we get a palindrome (4232332324).

The spelling of 1020302123 in words is "one billion, twenty million, three hundred two thousand, one hundred twenty-three".