202001011 has 4 divisors (see below), whose sum is σ = 202127400. Its totient is φ = 201874624.

The previous prime is 202001003. The next prime is 202001039. The reversal of 202001011 is 110100202.

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

It is a cyclic number.

It is not a de Polignac number, because 202001011 - 2³ = 202001003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202000985 and 202001003.

It is not an unprimeable number, because it can be changed into a prime (202001071) 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, 60766 + ... + 64003.

It is an arithmetic number, because the mean of its divisors is an integer number (50531850).

Almost surely, 2^202001011 is an apocalyptic number.

202001011 is a deficient number, since it is larger than the sum of its proper divisors (126389).

202001011 is a wasteful number, since it uses less digits than its factorization.

202001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126388.

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

The square root of 202001011 is about 14212.7059703633. The cubic root of 202001011 is about 586.7474097216.

Adding to 202001011 its reverse (110100202), we get a palindrome (312101213).

The spelling of 202001011 in words is "two hundred two million, one thousand, eleven".