201002031205 has 4 divisors (see below), whose sum is σ = 241202437452. Its totient is φ = 160801624960.

The previous prime is 201002031203. The next prime is 201002031253. The reversal of 201002031205 is 502130200102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 94129921636 + 106872109569 = 306806^2 + 326913^2 .

It is not a de Polignac number, because 201002031205 - 2¹ = 201002031203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002031203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20100203116 + ... + 20100203125.

It is an arithmetic number, because the mean of its divisors is an integer number (60300609363).

Almost surely, 2^201002031205 is an apocalyptic number.

It is an amenable number.

201002031205 is a deficient number, since it is larger than the sum of its proper divisors (40200406247).

201002031205 is an equidigital number, since it uses as much as digits as its factorization.

201002031205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40200406246.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 201002031205 its reverse (502130200102), we get a palindrome (703132231307).

The spelling of 201002031205 in words is "two hundred one billion, two million, thirty-one thousand, two hundred five".