203111212413 has 8 divisors (see below), whose sum is σ = 270829620928. Its totient is φ = 135400139424.

The previous prime is 203111212393. The next prime is 203111212429. The reversal of 203111212413 is 314212111302.

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

It is not a de Polignac number, because 203111212413 - 2⁶ = 203111212349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203111212413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203111212433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1768945 + ... + 1880262.

It is an arithmetic number, because the mean of its divisors is an integer number (33853702616).

Almost surely, 2^203111212413 is an apocalyptic number.

It is an amenable number.

203111212413 is a deficient number, since it is larger than the sum of its proper divisors (67718408515).

203111212413 is a wasteful number, since it uses less digits than its factorization.

203111212413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667763.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 203111212413 its reverse (314212111302), we get a palindrome (517323323715).

The spelling of 203111212413 in words is "two hundred three billion, one hundred eleven million, two hundred twelve thousand, four hundred thirteen".