103430202320021 has 4 divisors (see below), whose sum is σ = 103430499318444. Its totient is φ = 103429905321600.

The previous prime is 103430202320017. The next prime is 103430202320033. The reversal of 103430202320021 is 120023202034301.

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 65926458879121 + 37503743440900 = 8119511^2 + 6124030^2 .

It is a cyclic number.

It is not a de Polignac number, because 103430202320021 - 2² = 103430202320017 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 (103430202320041) 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, 147976220 + ... + 148673541.

It is an arithmetic number, because the mean of its divisors is an integer number (25857624829611).

Almost surely, 2^{103430202320021} is an apocalyptic number.

It is an amenable number.

103430202320021 is a deficient number, since it is larger than the sum of its proper divisors (296998423).

103430202320021 is an equidigital number, since it uses as much as digits as its factorization.

103430202320021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296998422.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 103430202320021 its reverse (120023202034301), we get a palindrome (223453404354322).

The spelling of 103430202320021 in words is "one hundred three trillion, four hundred thirty billion, two hundred two million, three hundred twenty thousand, twenty-one".