203587971812 has 12 divisors (see below), whose sum is σ = 356570274816. Its totient is φ = 101710750440.

The previous prime is 203587971803. The next prime is 203587971863. The reversal of 203587971812 is 218179785302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20803364 + ... + 20813147.

It is an arithmetic number, because the mean of its divisors is an integer number (29714189568).

Almost surely, 2^203587971812 is an apocalyptic number.

It is an amenable number.

203587971812 is a deficient number, since it is larger than the sum of its proper divisors (152982303004).

203587971812 is a wasteful number, since it uses less digits than its factorization.

203587971812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41617738 (or 41617736 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 203587971812 in words is "two hundred three billion, five hundred eighty-seven million, nine hundred seventy-one thousand, eight hundred twelve".