1230342205 has 4 divisors (see below), whose sum is σ = 1476410652. Its totient is φ = 984273760.

The previous prime is 1230342203. The next prime is 1230342233. The reversal of 1230342205 is 5022430321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5022430321 = 51109 ⋅98269.

It can be written as a sum of positive squares in 2 ways, for example, as 308248249 + 922093956 = 17557^2 + 30366^2 .

It is not a de Polignac number, because 1230342205 - 2¹ = 1230342203 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 (1230342203) 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, 123034216 + ... + 123034225.

It is an arithmetic number, because the mean of its divisors is an integer number (369102663).

Almost surely, 2^1230342205 is an apocalyptic number.

It is an amenable number.

1230342205 is a deficient number, since it is larger than the sum of its proper divisors (246068447).

1230342205 is an equidigital number, since it uses as much as digits as its factorization.

1230342205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246068446.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1230342205 is about 35076.2341906881. The cubic root of 1230342205 is about 1071.5406243147.

Adding to 1230342205 its reverse (5022430321), we get a palindrome (6252772526).

The spelling of 1230342205 in words is "one billion, two hundred thirty million, three hundred forty-two thousand, two hundred five".