201012001011 has 12 divisors (see below), whose sum is σ = 294025994080. Its totient is φ = 132311696400.

The previous prime is 201012000997. The next prime is 201012001033. The reversal of 201012001011 is 110100210102.

It is a happy number.

It is not a de Polignac number, because 201012001011 - 2¹⁸ = 201011738867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201012000984 and 201012001002.

It is not an unprimeable number, because it can be changed into a prime (201012001051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141357940 + ... + 141359361.

Almost surely, 2^201012001011 is an apocalyptic number.

201012001011 is a deficient number, since it is larger than the sum of its proper divisors (93013993069).

201012001011 is a wasteful number, since it uses less digits than its factorization.

201012001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282717386 (or 282717383 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 201012001011 its reverse (110100210102), we get a palindrome (311112211113).

The spelling of 201012001011 in words is "two hundred one billion, twelve million, one thousand, eleven".