201001102 has 4 divisors (see below), whose sum is σ = 301501656. Its totient is φ = 100500550.

The previous prime is 201001067. The next prime is 201001109. The reversal of 201001102 is 201100102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50250274 + ... + 50250277.

It is an arithmetic number, because the mean of its divisors is an integer number (75375414).

Almost surely, 2^201001102 is an apocalyptic number.

201001102 is a deficient number, since it is larger than the sum of its proper divisors (100500554).

201001102 is a wasteful number, since it uses less digits than its factorization.

201001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100500553.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 201001102 is about 14177.4857432480. The cubic root of 201001102 is about 585.7776707868. Note that the first 3 decimals are identical.

Adding to 201001102 its reverse (201100102), we get a palindrome (402101204).

The spelling of 201001102 in words is "two hundred one million, one thousand, one hundred two".