331143110121011 has 4 divisors (see below), whose sum is σ = 332628056803392. Its totient is φ = 329658163438632.

The previous prime is 331143110120989. The next prime is 331143110121079. The reversal of 331143110121011 is 110121011341133.

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 331143110121011 - 2⁶ = 331143110120947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331143110121911) 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, 742473340856 + ... + 742473341301.

It is an arithmetic number, because the mean of its divisors is an integer number (83157014200848).

Almost surely, 2^{331143110121011} is an apocalyptic number.

331143110121011 is a deficient number, since it is larger than the sum of its proper divisors (1484946682381).

331143110121011 is a wasteful number, since it uses less digits than its factorization.

331143110121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484946682380.

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 331143110121011 its reverse (110121011341133), we get a palindrome (441264121462144).

The spelling of 331143110121011 in words is "three hundred thirty-one trillion, one hundred forty-three billion, one hundred ten million, one hundred twenty-one thousand, eleven".