203212215431 has 8 divisors (see below), whose sum is σ = 203323061760. Its totient is φ = 203101407288.

The previous prime is 203212215419. The next prime is 203212215439. The reversal of 203212215431 is 134512212302.

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-203212215431 is a prime.

It is a super-2 number, since 2×203212215431² (a number of 23 digits) contains 22 as substring.

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 203212215431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203212215439) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 20037560 + ... + 20047698.

It is an arithmetic number, because the mean of its divisors is an integer number (25415382720).

Almost surely, 2^203212215431 is an apocalyptic number.

203212215431 is a deficient number, since it is larger than the sum of its proper divisors (110846329).

203212215431 is a wasteful number, since it uses less digits than its factorization.

203212215431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19093.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 203212215431 its reverse (134512212302), we get a palindrome (337724427733).

The spelling of 203212215431 in words is "two hundred three billion, two hundred twelve million, two hundred fifteen thousand, four hundred thirty-one".