1031331311121 has 8 divisors (see below), whose sum is σ = 1455997145184. Its totient is φ = 647109842240.

The previous prime is 1031331311077. The next prime is 1031331311159. The reversal of 1031331311121 is 1211131331301.

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

It is a cyclic number.

It is not a de Polignac number, because 1031331311121 - 2⁶ = 1031331311057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031331391121) 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, 10111091235 + ... + 10111091336.

It is an arithmetic number, because the mean of its divisors is an integer number (181999643148).

Almost surely, 2^{1031331311121} is an apocalyptic number.

It is an amenable number.

1031331311121 is a deficient number, since it is larger than the sum of its proper divisors (424665834063).

1031331311121 is a wasteful number, since it uses less digits than its factorization.

1031331311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20222182591.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1031331311121 its reverse (1211131331301), we get a palindrome (2242462642422).

The spelling of 1031331311121 in words is "one trillion, thirty-one billion, three hundred thirty-one million, three hundred eleven thousand, one hundred twenty-one".