331121101233231 has 24 divisors (see below), whose sum is σ = 488560678354944. Its totient is φ = 216007149031440.

The previous prime is 331121101233227. The next prime is 331121101233253. The reversal of 331121101233231 is 132332101121133.

331121101233231 is a `hidden beast` number, since 3 + 3 + 1 + 1 + 211 + 0 + 123 + 323 + 1 = 666.

It is not a de Polignac number, because 331121101233231 - 2² = 331121101233227 is a prime.

It is a super-2 number, since 2×331121101233231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331121101233195 and 331121101233204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331121101233031) 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, 76698255 + ... + 80900336.

It is an arithmetic number, because the mean of its divisors is an integer number (20356694931456).

Almost surely, 2^{331121101233231} is an apocalyptic number.

331121101233231 is a deficient number, since it is larger than the sum of its proper divisors (157439577121713).

331121101233231 is a wasteful number, since it uses less digits than its factorization.

331121101233231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157603611 (or 157603608 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 331121101233231 its reverse (132332101121133), we get a palindrome (463453202354364).

The spelling of 331121101233231 in words is "three hundred thirty-one trillion, one hundred twenty-one billion, one hundred one million, two hundred thirty-three thousand, two hundred thirty-one".