203122332012 has 24 divisors (see below), whose sum is σ = 474106124800. Its totient is φ = 67685441616.

The previous prime is 203122331989. The next prime is 203122332031. The reversal of 203122332012 is 210233221302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 203122332012.

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, 2711812 + ... + 2785707.

Almost surely, 2^203122332012 is an apocalyptic number.

It is an amenable number.

203122332012 is an abundant number, since it is smaller than the sum of its proper divisors (270983792788).

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

203122332012 is a wasteful number, since it uses less digits than its factorization.

203122332012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500605 (or 5500603 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203122332012 its reverse (210233221302), we get a palindrome (413355553314).

The spelling of 203122332012 in words is "two hundred three billion, one hundred twenty-two million, three hundred thirty-two thousand, twelve".