200120021034 has 16 divisors (see below), whose sum is σ = 421305307680. Its totient is φ = 63195796080.

The previous prime is 200120021033. The next prime is 200120021039. The reversal of 200120021034 is 430120021002.

It is not an unprimeable number, because it can be changed into a prime (200120021033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877719277 + ... + 877719504.

It is an arithmetic number, because the mean of its divisors is an integer number (26331581730).

Almost surely, 2^200120021034 is an apocalyptic number.

200120021034 is an abundant number, since it is smaller than the sum of its proper divisors (221185286646).

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

200120021034 is a wasteful number, since it uses less digits than its factorization.

200120021034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755438805.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 200120021034 its reverse (430120021002), we get a palindrome (630240042036).

The spelling of 200120021034 in words is "two hundred billion, one hundred twenty million, twenty-one thousand, thirty-four".