201043101028 has 24 divisors (see below), whose sum is σ = 438639493824. Its totient is φ = 78328480800.

The previous prime is 201043101023. The next prime is 201043101043. The reversal of 201043101028 is 820101340102.

It is a happy number.

201043101028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201043101028² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (201043101023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326368363 + ... + 326368978.

It is an arithmetic number, because the mean of its divisors is an integer number (18276645576).

Almost surely, 2^201043101028 is an apocalyptic number.

201043101028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

201043101028 is an abundant number, since it is smaller than the sum of its proper divisors (237596392796).

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

201043101028 is a wasteful number, since it uses less digits than its factorization.

201043101028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652737363 (or 652737361 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The spelling of 201043101028 in words is "two hundred one billion, forty-three million, one hundred one thousand, twenty-eight".