201240002 has 4 divisors (see below), whose sum is σ = 301860006. Its totient is φ = 100620000.

The previous prime is 201239971. The next prime is 201240029. The reversal of 201240002 is 200042102.

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

It can be written as a sum of positive squares in only one way, i.e., 116618401 + 84621601 = 10799^2 + 9199^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50309999 + ... + 50310002.

Almost surely, 2^201240002 is an apocalyptic number.

201240002 is a deficient number, since it is larger than the sum of its proper divisors (100620004).

201240002 is a wasteful number, since it uses less digits than its factorization.

201240002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100620003.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 201240002 is about 14185.9085715368. The cubic root of 201240002 is about 586.0096543894.

Adding to 201240002 its reverse (200042102), we get a palindrome (401282104).

The spelling of 201240002 in words is "two hundred one million, two hundred forty thousand, two".