331121142331 has 16 divisors (see below), whose sum is σ = 394125834240. Its totient is φ = 272257947360.

The previous prime is 331121142329. The next prime is 331121142349. The reversal of 331121142331 is 133241121133.

It is not a de Polignac number, because 331121142331 - 2¹ = 331121142329 is a prime.

It is a super-2 number, since 2×331121142331² (a number of 24 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 = 331121142296 and 331121142305.

It is not an unprimeable number, because it can be changed into a prime (331121142371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8984851 + ... + 9021628.

It is an arithmetic number, because the mean of its divisors is an integer number (24632864640).

Almost surely, 2^331121142331 is an apocalyptic number.

331121142331 is a deficient number, since it is larger than the sum of its proper divisors (63004691909).

331121142331 is a wasteful number, since it uses less digits than its factorization.

331121142331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18006594.

The product of its digits is 1296, while the sum is 25.

Adding to 331121142331 its reverse (133241121133), we get a palindrome (464362263464).

The spelling of 331121142331 in words is "three hundred thirty-one billion, one hundred twenty-one million, one hundred forty-two thousand, three hundred thirty-one".