4001031211111 has 8 divisors (see below), whose sum is σ = 4365903078144. Its totient is φ = 3636349636920.

The previous prime is 4001031211103. The next prime is 4001031211147. The reversal of 4001031211111 is 1111121301004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4001031211111 - 2³ = 4001031211103 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 (4001031221111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47529241 + ... + 47613346.

It is an arithmetic number, because the mean of its divisors is an integer number (545737884768).

Almost surely, 2^{4001031211111} is an apocalyptic number.

4001031211111 is a deficient number, since it is larger than the sum of its proper divisors (364871867033).

4001031211111 is a wasteful number, since it uses less digits than its factorization.

4001031211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95146421.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 4001031211111 its reverse (1111121301004), we get a palindrome (5112152512115).

The spelling of 4001031211111 in words is "four trillion, one billion, thirty-one million, two hundred eleven thousand, one hundred eleven".