331121322031331 has 24 divisors (see below), whose sum is σ = 377515301249520. Its totient is φ = 289492480382976.

The previous prime is 331121322031271. The next prime is 331121322031349. The reversal of 331121322031331 is 133130223121133.

It is not a de Polignac number, because 331121322031331 - 2²² = 331121317837027 is a prime.

It is a super-2 number, since 2×331121322031331² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331121322031294 and 331121322031303.

It is not an unprimeable number, because it can be changed into a prime (331121322031351) 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, 419315 + ... + 25737491.

It is an arithmetic number, because the mean of its divisors is an integer number (15729804218730).

Almost surely, 2^{331121322031331} is an apocalyptic number.

331121322031331 is a deficient number, since it is larger than the sum of its proper divisors (46393979218189).

331121322031331 is a wasteful number, since it uses less digits than its factorization.

331121322031331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25322295 (or 25322282 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 331121322031331 its reverse (133130223121133), we get a palindrome (464251545152464).

The spelling of 331121322031331 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, three hundred twenty-two million, thirty-one thousand, three hundred thirty-one".