203312311022000 has 40 divisors (see below), whose sum is σ = 491609168056032. Its totient is φ = 81324924408000.

The previous prime is 203312311021997. The next prime is 203312311022033. The reversal of 203312311022000 is 220113213302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50828075756 + ... + 50828079755.

Almost surely, 2^{203312311022000} is an apocalyptic number.

203312311022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203312311022000 is an abundant number, since it is smaller than the sum of its proper divisors (288296857034032).

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

203312311022000 is a wasteful number, since it uses less digits than its factorization.

203312311022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101656155534 (or 101656155518 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203312311022000 its reverse (220113213302), we get a palindrome (203532424235302).

The spelling of 203312311022000 in words is "two hundred three trillion, three hundred twelve billion, three hundred eleven million, twenty-two thousand".