331252224331 has 4 divisors (see below), whose sum is σ = 378573970672. Its totient is φ = 283930477992.

The previous prime is 331252224323. The next prime is 331252224403. The reversal of 331252224331 is 133422252133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133422252133 = 279577 ⋅477229.

It is not a de Polignac number, because 331252224331 - 2³ = 331252224323 is a prime.

It is a super-2 number, since 2×331252224331² (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 = 331252224293 and 331252224302.

It is not an unprimeable number, because it can be changed into a prime (331252224311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23660873160 + ... + 23660873173.

It is an arithmetic number, because the mean of its divisors is an integer number (94643492668).

Almost surely, 2^331252224331 is an apocalyptic number.

331252224331 is a deficient number, since it is larger than the sum of its proper divisors (47321746341).

331252224331 is an equidigital number, since it uses as much as digits as its factorization.

331252224331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47321746340.

The product of its digits is 25920, while the sum is 31.

Adding to 331252224331 its reverse (133422252133), we get a palindrome (464674476464).

The spelling of 331252224331 in words is "three hundred thirty-one billion, two hundred fifty-two million, two hundred twenty-four thousand, three hundred thirty-one".