203640213030311 has 8 divisors (see below), whose sum is σ = 204034750343424. Its totient is φ = 203246055997240.

The previous prime is 203640213030161. The next prime is 203640213030337. The reversal of 203640213030311 is 113030312046302.

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-203640213030311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203640213030811) 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, 93997961 + ... + 96139986.

It is an arithmetic number, because the mean of its divisors is an integer number (25504343792928).

Almost surely, 2^{203640213030311} is an apocalyptic number.

203640213030311 is a deficient number, since it is larger than the sum of its proper divisors (394537313113).

203640213030311 is a wasteful number, since it uses less digits than its factorization.

203640213030311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190140021.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 203640213030311 its reverse (113030312046302), we get a palindrome (316670525076613).

The spelling of 203640213030311 in words is "two hundred three trillion, six hundred forty billion, two hundred thirteen million, thirty thousand, three hundred eleven".