1202343421 has 8 divisors (see below), whose sum is σ = 1215942840. Its totient is φ = 1188768768.

The previous prime is 1202343419. The next prime is 1202343449. The reversal of 1202343421 is 1243432021.

It can be written as a sum of positive squares in 4 ways, for example, as 73719396 + 1128624025 = 8586^2 + 33595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1202343421 - 2¹ = 1202343419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202343392 and 1202343401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202343221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101985 + ... + 113161.

It is an arithmetic number, because the mean of its divisors is an integer number (151992855).

Almost surely, 2^1202343421 is an apocalyptic number.

It is an amenable number.

1202343421 is a deficient number, since it is larger than the sum of its proper divisors (13599419).

1202343421 is a wasteful number, since it uses less digits than its factorization.

1202343421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12383.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1202343421 is about 34674.8240226248. The cubic root of 1202343421 is about 1063.3498572743.

Adding to 1202343421 its reverse (1243432021), we get a palindrome (2445775442).

The spelling of 1202343421 in words is "one billion, two hundred two million, three hundred forty-three thousand, four hundred twenty-one".