15204230213 has 8 divisors (see below), whose sum is σ = 15247104600. Its totient is φ = 15161384448.

The previous prime is 15204230191. The next prime is 15204230221. The reversal of 15204230213 is 31203240251.

It can be written as a sum of positive squares in 4 ways, for example, as 3240683329 + 11963546884 = 56927^2 + 109378^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15204230213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15204230243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472573 + ... + 1482861.

It is an arithmetic number, because the mean of its divisors is an integer number (1905888075).

Almost surely, 2^15204230213 is an apocalyptic number.

It is an amenable number.

15204230213 is a deficient number, since it is larger than the sum of its proper divisors (42874387).

15204230213 is a wasteful number, since it uses less digits than its factorization.

15204230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14311.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 15204230213 its reverse (31203240251), we get a palindrome (46407470464).

The spelling of 15204230213 in words is "fifteen billion, two hundred four million, two hundred thirty thousand, two hundred thirteen".