204013213402 has 4 divisors (see below), whose sum is σ = 306019820106. Its totient is φ = 102006606700.

The previous prime is 204013213387. The next prime is 204013213423. The reversal of 204013213402 is 204312310402.

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., 116916808761 + 87096404641 = 341931^2 + 295121^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51003303349 + ... + 51003303352.

Almost surely, 2^204013213402 is an apocalyptic number.

204013213402 is a deficient number, since it is larger than the sum of its proper divisors (102006606704).

204013213402 is a wasteful number, since it uses less digits than its factorization.

204013213402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102006606703.

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

Adding to 204013213402 its reverse (204312310402), we get a palindrome (408325523804).

The spelling of 204013213402 in words is "two hundred four billion, thirteen million, two hundred thirteen thousand, four hundred two".