203001201972 has 96 divisors (see below), whose sum is σ = 561012480000. Its totient is φ = 63294128352.

The previous prime is 203001201967. The next prime is 203001201973. The reversal of 203001201972 is 279102100302.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203001201973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464022 + ... + 788237.

It is an arithmetic number, because the mean of its divisors is an integer number (5843880000).

Almost surely, 2^203001201972 is an apocalyptic number.

It is an amenable number.

203001201972 is an abundant number, since it is smaller than the sum of its proper divisors (358011278028).

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

203001201972 is a wasteful number, since it uses less digits than its factorization.

203001201972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252370 (or 1252362 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The spelling of 203001201972 in words is "two hundred three billion, one million, two hundred one thousand, nine hundred seventy-two".