203178043002 has 32 divisors (see below), whose sum is σ = 444259214784. Its totient is φ = 61435539200.

The previous prime is 203178042997. The next prime is 203178043021. The reversal of 203178043002 is 200340871302.

It is a super-2 number, since 2×203178043002² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 3308463 + ... + 3369314.

It is an arithmetic number, because the mean of its divisors is an integer number (13883100462).

Almost surely, 2^203178043002 is an apocalyptic number.

203178043002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203178043002 is an abundant number, since it is smaller than the sum of its proper divisors (241081171782).

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

203178043002 is a wasteful number, since it uses less digits than its factorization.

203178043002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6678254.

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 203178043002 in words is "two hundred three billion, one hundred seventy-eight million, forty-three thousand, two".