203112240212 has 24 divisors (see below), whose sum is σ = 430120039104. Its totient is φ = 81927626112.

The previous prime is 203112240203. The next prime is 203112240299. The reversal of 203112240212 is 212042211302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213352718 + ... + 213353669.

It is an arithmetic number, because the mean of its divisors is an integer number (17921668296).

Almost surely, 2^203112240212 is an apocalyptic number.

It is an amenable number.

203112240212 is an abundant number, since it is smaller than the sum of its proper divisors (227007798892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203112240212 is a wasteful number, since it uses less digits than its factorization.

203112240212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426706415 (or 426706413 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 203112240212 its reverse (212042211302), we get a palindrome (415154451514).

The spelling of 203112240212 in words is "two hundred three billion, one hundred twelve million, two hundred forty thousand, two hundred twelve".