203020387957752 has 128 divisors (see below), whose sum is σ = 516275250716160. Its totient is φ = 66516147568640.

The previous prime is 203020387957721. The next prime is 203020387957799. The reversal of 203020387957752 is 257759783020302.

It is a super-2 number, since 2×203020387957752² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2810829463 + ... + 2810901689.

It is an arithmetic number, because the mean of its divisors is an integer number (4033400396220).

Almost surely, 2^{203020387957752} is an apocalyptic number.

It is an amenable number.

203020387957752 is an abundant number, since it is smaller than the sum of its proper divisors (313254862758408).

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

203020387957752 is a wasteful number, since it uses less digits than its factorization.

203020387957752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77333 (or 77329 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 60.

The spelling of 203020387957752 in words is "two hundred three trillion, twenty billion, three hundred eighty-seven million, nine hundred fifty-seven thousand, seven hundred fifty-two".