201001010111 has 16 divisors (see below), whose sum is σ = 224112970368. Its totient is φ = 178739172000.

The previous prime is 201001010107. The next prime is 201001010131. The reversal of 201001010111 is 111010100102.

It is a happy number.

It is not a de Polignac number, because 201001010111 - 2² = 201001010107 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 (201001010131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 997661 + ... + 1182086.

It is an arithmetic number, because the mean of its divisors is an integer number (14007060648).

Almost surely, 2^201001010111 is an apocalyptic number.

201001010111 is a deficient number, since it is larger than the sum of its proper divisors (23111960257).

201001010111 is a wasteful number, since it uses less digits than its factorization.

201001010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179942.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 201001010111 its reverse (111010100102), we get a palindrome (312011110213).

The spelling of 201001010111 in words is "two hundred one billion, one million, ten thousand, one hundred eleven".