203410321212 has 48 divisors (see below), whose sum is σ = 542542758912. Its totient is φ = 58104888000.

The previous prime is 203410321157. The next prime is 203410321249. The reversal of 203410321212 is 212123014302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144238 + ... + 653930.

It is an arithmetic number, because the mean of its divisors is an integer number (11302974144).

Almost surely, 2^203410321212 is an apocalyptic number.

It is an amenable number.

203410321212 is an abundant number, since it is smaller than the sum of its proper divisors (339132437700).

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

203410321212 is a wasteful number, since it uses less digits than its factorization.

203410321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514458 (or 514456 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 203410321212 its reverse (212123014302), we get a palindrome (415533335514).

The spelling of 203410321212 in words is "two hundred three billion, four hundred ten million, three hundred twenty-one thousand, two hundred twelve".