203122321412 has 24 divisors (see below), whose sum is σ = 356201600160. Its totient is φ = 101350529280.

The previous prime is 203122321411. The next prime is 203122321421. The reversal of 203122321412 is 214123221302.

It is not an unprimeable number, because it can be changed into a prime (203122321411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11546039 + ... + 11563617.

It is an arithmetic number, because the mean of its divisors is an integer number (14841733340).

Almost surely, 2^203122321412 is an apocalyptic number.

It is an amenable number.

203122321412 is a deficient number, since it is larger than the sum of its proper divisors (153079278748).

203122321412 is a wasteful number, since it uses less digits than its factorization.

203122321412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23411 (or 23409 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 203122321412 its reverse (214123221302), we get a palindrome (417245542714).

The spelling of 203122321412 in words is "two hundred three billion, one hundred twenty-two million, three hundred twenty-one thousand, four hundred twelve".