243215006420402 has 8 divisors (see below), whose sum is σ = 365081432636700. Its totient is φ = 121521195541504.

The previous prime is 243215006420383. The next prime is 243215006420429. The reversal of 243215006420402 is 204024600512342.

It can be written as a sum of positive squares in 2 ways, for example, as 200929235852401 + 42285770568001 = 14174951^2 + 6502751^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43153830827 + ... + 43153836462.

Almost surely, 2^{243215006420402} is an apocalyptic number.

243215006420402 is a deficient number, since it is larger than the sum of its proper divisors (121866426216298).

243215006420402 is a wasteful number, since it uses less digits than its factorization.

243215006420402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86307668700.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 243215006420402 its reverse (204024600512342), we get a palindrome (447239606932744).

The spelling of 243215006420402 in words is "two hundred forty-three trillion, two hundred fifteen billion, six million, four hundred twenty thousand, four hundred two".