203213242402 has 4 divisors (see below), whose sum is σ = 304819863606. Its totient is φ = 101606621200.

The previous prime is 203213242399. The next prime is 203213242411. The reversal of 203213242402 is 204242312302.

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

It can be written as a sum of positive squares in only one way, i.e., 197490471201 + 5722771201 = 444399^2 + 75649^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50803310599 + ... + 50803310602.

Almost surely, 2^203213242402 is an apocalyptic number.

203213242402 is a deficient number, since it is larger than the sum of its proper divisors (101606621204).

203213242402 is a wasteful number, since it uses less digits than its factorization.

203213242402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101606621203.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 203213242402 its reverse (204242312302), we get a palindrome (407455554704).

The spelling of 203213242402 in words is "two hundred three billion, two hundred thirteen million, two hundred forty-two thousand, four hundred two".