201011031111 has 24 divisors (see below), whose sum is σ = 299587841280. Its totient is φ = 119760026320.

The previous prime is 201011031101. The next prime is 201011031121. The reversal of 201011031111 is 111130110102.

It is an interprime number because it is at equal distance from previous prime (201011031101) and next prime (201011031121).

It is not a de Polignac number, because 201011031111 - 2⁹ = 201011030599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011031101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4671375 + ... + 4714208.

It is an arithmetic number, because the mean of its divisors is an integer number (12482826720).

Almost surely, 2^201011031111 is an apocalyptic number.

201011031111 is a deficient number, since it is larger than the sum of its proper divisors (98576810169).

201011031111 is a wasteful number, since it uses less digits than its factorization.

201011031111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385667 (or 9385656 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 201011031111 its reverse (111130110102), we get a palindrome (312141141213).

The spelling of 201011031111 in words is "two hundred one billion, eleven million, thirty-one thousand, one hundred eleven".