203030113212 has 72 divisors (see below), whose sum is σ = 543612547296. Its totient is φ = 63671291904.

The previous prime is 203030113211. The next prime is 203030113213. The reversal of 203030113212 is 212311030302.

It is an interprime number because it is at equal distance from previous prime (203030113211) and next prime (203030113213).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203030113211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1567468 + ... + 1692044.

It is an arithmetic number, because the mean of its divisors is an integer number (7550174268).

Almost surely, 2^203030113212 is an apocalyptic number.

It is an amenable number.

203030113212 is an abundant number, since it is smaller than the sum of its proper divisors (340582434084).

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

203030113212 is a wasteful number, since it uses less digits than its factorization.

203030113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127267 (or 127262 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 203030113212 its reverse (212311030302), we get a palindrome (415341143514).

The spelling of 203030113212 in words is "two hundred three billion, thirty million, one hundred thirteen thousand, two hundred twelve".