1030423403309 has 4 divisors (see below), whose sum is σ = 1031756422716. Its totient is φ = 1029090383904.

The previous prime is 1030423403267. The next prime is 1030423403311. The reversal of 1030423403309 is 9033043240301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 613172000809 + 417251402500 = 783053^2 + 645950^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030423403309 - 2²⁰ = 1030422354733 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 (1030423408309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666508544 + ... + 666510089.

It is an arithmetic number, because the mean of its divisors is an integer number (257939105679).

Almost surely, 2^{1030423403309} is an apocalyptic number.

It is an amenable number.

1030423403309 is a deficient number, since it is larger than the sum of its proper divisors (1333019407).

1030423403309 is an equidigital number, since it uses as much as digits as its factorization.

1030423403309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333019406.

The product of its (nonzero) digits is 23328, while the sum is 32.

The spelling of 1030423403309 in words is "one trillion, thirty billion, four hundred twenty-three million, four hundred three thousand, three hundred nine".